Flat iron steak is a flavorful cut that often gets overlooked, but when cooked low and slow in a crock pot, it transforms into tender, melt-in-your-mouth perfection. Using a slow cooker not only makes the process hands-off but also locks in all those rich juices and spices, giving us a deliciously satisfying meal every time.
This flat iron steak recipe in the crock pot is perfect for busy days when we want something hearty without spending hours in the kitchen. Whether you’re meal prepping or cooking for family dinner, this method guarantees a juicy steak with minimal effort. Let’s dive into this easy slow-cooked recipe that brings out the best in this affordable cut.
Ingredients
To achieve the perfect Flat Iron Steak Recipe Crock Pot, we gather simple yet flavorful ingredients. These components work together to create a tender steak infused with deep, rich flavor through slow cooking.
Meat and Marinade Ingredients
We start with the star of the dish — the flat iron steak. To tenderize and enhance its natural beefiness, we use a marinade. The marinade not only complements the steak but also helps retain moisture during the long cooking hours.
- 2 pounds flat iron steak (trimmed of excess fat)
- 1/4 cup olive oil (for marinade)
- 1/4 cup soy sauce (adds umami and saltiness)
- 2 tablespoons balsamic vinegar (for acidity and depth)
- 2 cloves garlic (minced, for fresh aromatic punch)
- 1 tablespoon Worcestershire sauce (boosts savory flavor)
- 1 teaspoon freshly ground black pepper
Vegetables and Aromatics
We add fresh vegetables and aromatics to infuse the steak with subtle sweetness and mouthwatering fragrance. These elements enrich the slow cooker environment, creating a balanced taste profile.
- 1 large onion (sliced)
- 2 large carrots (peeled and cut into chunks)
- 2 stalks celery (sliced)
- 1 cup beef broth (helps maintain juiciness)
- 2 sprigs fresh rosemary (for woodsy aroma)
- 2 sprigs fresh thyme (adds earthy notes)
Seasonings and Sauces
Our blend of Seasonings and Sauces will deepen the flavor layers and complement the natural taste of the meat. These are essential for turning a simple flat iron steak into a slow-cooked delicacy.
| Seasoning/Sauce | Quantity | Purpose |
|---|---|---|
| Salt | 1 teaspoon | Enhances overall flavor |
| Smoked paprika | 1 teaspoon | Adds smoky warmth |
| Crushed red pepper | 1/4 teaspoon | Provides subtle heat |
| Brown sugar | 1 tablespoon | Balances acidity and adds caramel notes |
| Tomato paste | 1 tablespoon | Thickens sauce and adds richness |
Together these ingredients create the ideal slow cooker flat iron steak that’s bursting with flavor and perfectly tender from slow cooking. By prepping the meat, vegetables, and seasonings carefully, we set the stage for a hands-off yet remarkable meal.
Equipment Needed
To master the Flat Iron Steak Recipe Crock Pot, having the right equipment is essential. We’ll walk through the key tools that help us achieve that tender, flavorful result with ease.
Crock Pot or Slow Cooker
A crock pot or slow cooker is the heart of this recipe. It gently simmers the flat iron steak over several hours, breaking down the meat fibers for maximum tenderness while infusing flavors. When selecting your slow cooker, consider these features:
| Feature | Importance | Notes |
|---|---|---|
| Size | Medium to large (4-6 quarts) | Allows enough room for meat & veggies |
| Temperature Settings | Low, High, Keep Warm | Use “Low” for slow even cooking |
| Programmable Timer | Optional but convenient | Enables timed cooking for hands-off meal prep |
We rely on the “Low” setting to create a perfectly moist and tender steak without drying it out or rushing the process.
Additional Kitchen Tools
To complement the crock pot and streamline our preparation, we use the following essential kitchen tools:
- Cutting Board and Chef’s Knife
For chopping fresh vegetables like onions, carrots, and celery precisely and safely.
- Measuring Spoons and Cups
Accurate seasoning is critical, so these help us measure salt, paprika, brown sugar, and broth with precision.
- Tongs
Handy for searing the flat iron steak on the stovetop before placing it in the crock pot, which enhances the dish’s flavor and texture by locking in juices.
- Mixing Bowl
To combine and marinate the steak with herbs, spices, and liquids thoroughly before slow cooking.
- Ladle or Spoon
Useful for stirring ingredients and serving the hearty, rich sauce at the end.
Equipping ourselves with these tools ensures that our Flat Iron Steak Recipe Crock Pot process is smooth, efficient, and delivers restaurant-quality results every time.
Preparation
To create a perfectly tender and flavorful Flat Iron Steak Recipe Crock Pot, the preparation stage is crucial. Let’s walk through each step carefully to maximize flavor and ensure even cooking.
Preparing the Flat Iron Steak
We start by trimming any excess fat and silver skin from the flat iron steak to prevent toughness. Use a sharp knife and cutting board for safe trimming. Pat the steak dry with paper towels to promote better browning if searing before slow cooking.
Then, season the steak generously on both sides with salt, freshly ground black pepper, and a pinch of smoked paprika to lock in flavor. This basic seasoning creates a savory base that complements the slow cooker’s tenderizing process.
Preparing Vegetables and Aromatics
Next, we prepare the vegetables and aromatics which will infuse the crock pot with depth and aroma. Dice the following fresh ingredients uniformly:
- 2 medium onions, peeled and chopped
- 3 large carrots, peeled and sliced into 1/2-inch thick rounds
- 2 celery stalks, chopped
- 3 garlic cloves, minced
Uniform chopping ensures even cooking. These vegetables act as a flavorful bed for the steak and release natural sweetness during the slow cook.
Making the Marinade or Sauce
Our marinade will tenderize the steak while enhancing its rich flavor. We combine the following in a mixing bowl:
| Ingredient | Measurement | Purpose |
|---|---|---|
| Beef broth | 1 ½ cups | Moisture and depth |
| Worcestershire sauce | 2 tablespoons | Umami richness |
| Olive oil | 1 tablespoon | Fat for flavor absorption |
| Brown sugar | 1 tablespoon | Adds subtle sweetness |
| Fresh rosemary | 2 sprigs | Earthy herbal aroma |
| Fresh thyme | 2 sprigs | Adds complexity |
| Smoked paprika | 1 teaspoon | Smoked flavor accent |
| Salt | 1 teaspoon | Taste enhancer |
Whisk these together until well combined. The balance of acidity, sweetness, herbs, and umami creates a sauce that deeply flavors the steak and vegetables during the long cooking time.
Pro Tip:
Marinate the steak for at least 30 minutes or overnight in the refrigerator for even more tender and flavorful results.
We are now ready to layer the ingredients into our slow cooker and let the crock pot work its magic.
Cooking Instructions
Follow these steps carefully to make a perfectly tender and flavorful Flat Iron Steak Recipe Crock Pot. Each phase builds flavor and ensures a melt-in-your-mouth result with minimal effort.
Searing the Flat Iron Steak (Optional)
Although optional, searing the flat iron steak before slow cooking enhances flavor and locks in juices:
- Preheat a heavy skillet or cast iron pan over medium-high heat.
- Add 1 tablespoon of olive oil and let it heat until shimmering.
- Place the seasoned flat iron steak in the pan.
- Sear for 2 to 3 minutes on each side until a rich brown crust forms.
- Remove steak and set aside while preparing the crock pot.
Pro tip: Searing adds a deeper flavor through Maillard reaction which slow cooking alone cannot create.
Setting Up the Crock Pot
Proper layering and ingredient arrangement are key to an exceptional slow-cooked steak:
- Place the chopped onions, carrots, and celery evenly in the bottom of the crock pot.
- Add minced garlic and herbs like rosemary and thyme on top of the vegetables.
- Place the seared or raw flat iron steak on the vegetable bed.
- Pour the marinade mixture over the steak and vegetables, ensuring it covers everything evenly.
- Cover the crock pot with its lid securely.
This method allows the steak to slowly absorb the aromatic flavors while retaining moisture.
Slow Cooking Time and Temperature
Cook the flat iron steak on low heat to ensure maximum tenderness:
| Temperature Setting | Cooking Time | Result |
|---|---|---|
| Low | 6 to 8 hours | Tender, juicy steak |
| High | 3 to 4 hours | Good tenderness, faster |
We recommend cooking on low for 6 to 8 hours. This slow process breaks down connective tissues gently, creating a succulent texture without drying or toughness.
Remember to avoid opening the lid frequently as it releases heat and extends cooking time. Once done, allow the steak to rest in the crock pot for 10 minutes before serving to let juices redistribute evenly.
Serving Suggestions
Once our Flat Iron Steak Recipe Crock Pot has reached perfect tenderness, serving it with the right accompaniments elevates the dining experience. Here’s how to present and enjoy this flavorful dish at its best.
Resting and Slicing the Steak
To preserve the juices and tenderness unlocked by slow cooking, we let the steak rest in the crock pot for about 10 minutes after cooking. This step allows the fibers to relax and the juices to redistribute evenly. When slicing, we recommend:
- Using a sharp carving knife
- Cutting against the grain of the meat for optimal tenderness
- Slicing into thin, even pieces around ¼ inch thick
This technique ensures every bite is as flavorful and tender as possible.
Recommended Side Dishes
Pairing our slow-cooked flat iron steak with complementary sides rounds out the meal beautifully. Consider these classic and hearty options:
| Side Dish | Description | Why It Works |
|---|---|---|
| Garlic Mashed Potatoes | Creamy, buttery potatoes mashed with garlic | Soaks up steak juices perfectly |
| Roasted Root Vegetables | Carrots, parsnips, and sweet potatoes roasted to caramelized perfection | Adds earthy sweetness and texture |
| Steamed Green Beans | Crisp-tender green beans lightly seasoned | Balances richness with freshness |
| Creamed Spinach | Rich and velvety spinach with garlic and cheese | Provides a creamy, savory contrast |
| Crusty French Bread | Warm bread with a crunchy crust | Great for sopping up flavorful broth |
Garnishing Ideas
A simple garnish enhances both the presentation and flavor of our flat iron steak dish. Here are our top picks:
- Fresh chopped parsley or thyme sprigs to add a pop of color and herbaceous aroma
- A sprinkle of coarse sea salt or cracked black pepper for texture contrast
- Thinly sliced green onions to provide mild sharpness and visual appeal
- A drizzle of extra virgin olive oil or a spoonful of horseradish cream for an extra flavor kick
By combining these serving techniques and side dishes, we transform our Flat Iron Steak Recipe Crock Pot into a memorable and satisfying meal every time.
Make-Ahead Tips
Preparing our Flat Iron Steak Recipe Crock Pot in advance can save time and enhance flavors. Here are essential tips to make your meal prep seamless and efficient.
Storing Before Cooking
To maximize convenience and taste, we recommend marinating the flat iron steak overnight. Follow these guidelines for safe and effective storage before cooking:
- Place the seasoned and marinated steak in an airtight container or resealable plastic bag.
- Refrigerate for 6 to 24 hours to allow flavors to penetrate deeply.
- Keep chopped vegetables and aromatics in separate containers to maintain freshness.
- If you prepare everything including layering in the crock pot insert, cover tightly with plastic wrap and refrigerate for up to 12 hours before cooking.
| Preparation Step | Recommended Storage Method | Max Storage Time |
|---|---|---|
| Marinated flat iron steak | Airtight container or plastic bag | 6 to 24 hours |
| Chopped vegetables and aromatics | Airtight containers | 24 hours |
| Layered ingredients in crock pot | Covered crock pot insert, refrigerated | 12 hours |
“Marinating overnight improves tenderness and flavor infusion, turning our flat iron steak into a truly exceptional slow-cooked meal.”
Reheating Instructions
For the best results when reheating your slow cooker flat iron steak, follow these steps to maintain its juicy and tender texture:
- Oven Reheat: Preheat oven to 325°F (165°C). Place steak and vegetables in an oven-safe dish covered with foil. Heat for 15 to 20 minutes or until warmed through.
- Slow Cooker Reheat: Transfer contents back into the crock pot. Heat on Low for 1 to 2 hours with the lid closed to avoid drying.
- Stovetop Reheat: Warm gently in a skillet over low heat with a splash of beef broth to retain moisture. Cover and heat until the steak is warmed.
Avoid microwave reheating as it can cause uneven warming and toughen the steak. Always slice the steak after reheating to preserve juices.
| Reheating Method | Temperature | Time | Notes |
|---|---|---|---|
| Oven | 325°F (165°C) | 15-20 minutes | Cover with foil to retain moisture |
| Slow Cooker | Low | 1-2 hours | Use lid; keeps steak tender |
| Stovetop | Low heat | Until warmed | Add broth to prevent drying |
Conclusion
Cooking flat iron steak in a crock pot turns an affordable cut into a tender and flavorful meal with minimal effort. The slow cooker’s hands-off approach fits perfectly into busy lifestyles without sacrificing taste or quality.
By layering fresh ingredients and using a well-balanced marinade, we can create a dish that’s both comforting and impressive. Plus, the flexibility in preparation and serving options makes this recipe a versatile addition to our dinner rotation.
With the right tools and techniques, this slow-cooked flat iron steak recipe delivers consistent, mouthwatering results that everyone will enjoy. It’s a simple way to elevate weeknight dinners or meal prep with confidence and ease.
Frequently Asked Questions
What are the benefits of cooking flat iron steak in a crock pot?
Cooking flat iron steak in a crock pot makes it tender and flavorful through slow cooking. It’s convenient, hands-off, and perfect for busy days, yielding juicy steak with minimal effort.
What ingredients do I need for slow-cooked flat iron steak?
You need flat iron steak, fresh vegetables (onions, carrots, celery), beef broth, herbs (rosemary, thyme), and seasonings like salt, smoked paprika, brown sugar, Worcestershire sauce, and olive oil for the marinade.
What equipment is essential to make this recipe?
A crock pot or slow cooker is essential. Other helpful tools include a cutting board, chef’s knife, measuring spoons, mixing bowl, tongs, and a ladle or spoon.
Should I sear the flat iron steak before slow cooking?
Searing is optional but recommended. It enhances flavor and locks in juices, improving the final taste and texture of the steak.
How long should I cook flat iron steak in the crock pot?
Cook on low heat for 6 to 8 hours to achieve maximum tenderness. Avoid opening the lid frequently to maintain heat and moisture.
How do I serve slow-cooked flat iron steak?
Rest the steak for 10 minutes, then slice thinly against the grain. Pair with sides like mashed potatoes or roasted vegetables and garnish with fresh herbs or a drizzle of olive oil.
Can I prepare the ingredients ahead of time?
Yes, marinate the steak overnight for better flavor and store chopped vegetables separately. This saves preparation time on cooking day.
How should I store leftovers safely?
Store marinated steak and chopped vegetables in airtight containers in the fridge. Use leftovers within 3-4 days for best quality and safety.
What’s the best method to reheat slow-cooked flat iron steak?
Reheat gently in the oven, slow cooker, or on the stovetop to keep the steak juicy and tender. Avoid microwaving, as it can make the meat tough.
Is flat iron steak an affordable cut for slow cooking?
Yes, flat iron steak is budget-friendly and becomes tender and flavorful when slow-cooked, making it an excellent choice for delicious meals without overspending.