Flat iron steak is a flavorful and tender cut that often gets overlooked. When cooked low and slow in a crock pot it transforms into a melt-in-your-mouth meal that’s perfect for busy weeknights. This method lets the steak soak up all the rich seasonings while becoming incredibly juicy.
Using a crock pot means minimal effort but maximum taste. We love how this recipe turns a simple cut of beef into a hearty dish that pairs well with mashed potatoes or roasted veggies. Whether you’re meal prepping or looking for an easy dinner idea this flat iron steak crock pot recipe delivers consistent, delicious results every time.
Ingredients
To make our Flat Iron Steak Crock Pot Recipe truly shine, we carefully select ingredients that enhance the flavor and tenderness of the steak. Below, we break down what you’ll need for the steak itself, the marinade or sauce, and optional vegetables and seasonings to customize your meal.
For the Flat Iron Steak
- 2 pounds flat iron steak, trimmed of excess fat and cut into 1 ½ inch thick pieces
- Salt, to taste
- Freshly ground black pepper, to taste
For the Marinade or Sauce
Our marinade infuses the flat iron steak with rich, savory notes that make this crock pot recipe unforgettable.
| Ingredient | Amount | Notes |
|---|---|---|
| Soy sauce | ½ cup | Adds deep umami flavor |
| Worcestershire sauce | ¼ cup | Enhances richness and depth |
| Beef broth | 1 cup | Provides moisture and body |
| Olive oil | 2 tbsp | Helps tenderize and bind flavors |
| Garlic cloves | 4, minced | Adds aromatic pungency |
| Brown sugar | 2 tbsp | Balances savory with slight sweetness |
| Onion powder | 1 tsp | Adds subtle sweetness and flavor |
| Smoked paprika | 1 tsp | Offers smoky warmth |
| Fresh thyme | 1 tsp, chopped | For herbaceous freshness |
Optional Vegetables and Seasonings
Customize the crock pot dish by adding these vegetables and seasonings which cook alongside the steak, absorbing the delicious marinade.
- Carrots, 3 medium, peeled and cut into chunks
- Baby potatoes, 1 pound, halved
- Yellow onion, 1 large, sliced
- Celery stalks, 2, chopped
- Fresh rosemary sprigs, 2 for an earthy aroma
- Red pepper flakes, ¼ tsp for subtle heat (optional)
These ingredients help create a one-pot meal with robust flavors and tender textures.
Equipment Needed
To prepare our Flat Iron Steak Crock Pot Recipe, having the right equipment streamlines the cooking and enhances the final dish’s quality. Here’s what we need to make this meal effortless and delicious.
Crock Pot or Slow Cooker
A crock pot or slow cooker is essential for this recipe. It provides slow, even heat that tenderizes the flat iron steak while allowing it to soak in the rich marinade flavors. Choose a crock pot with a capacity of at least 4 to 6 quarts to comfortably fit the steak and optional vegetables.
| Feature | Recommendation |
|---|---|
| Minimum Capacity | 4 to 6 quarts |
| Heat Settings | Low and High |
| Removable Stoneware | For easy cleaning |
| Programmable Timer | Optional for convenience |
Kitchen Tools and Utensils
Having the right kitchen tools helps us execute each step with precision:
- Sharp Chef’s Knife: To trim and slice the flat iron steak and chop vegetables.
- Cutting Board: A sturdy surface for safe, clean chopping.
- Measuring Spoons and Cups: Accurate ingredient measurements for seasoning the steak and preparing the marinade.
- Mixing Bowl: To combine the marinade ingredients before pouring over the steak.
- Tongs: For flipping the steak or handling ingredients without piercing the meat.
- Wooden Spoon or Silicone Spatula: For stirring and distributing the marinade.
- Aluminum Foil (optional): Useful for covering the crock pot or resting meat after cooking.
Each tool ensures we deliver on the promise of a juicy, flavorful flat iron steak that melts in your mouth.
Preparation
Before we start slow-cooking, proper Preparation of the ingredients ensures maximum flavor and tenderness in our Flat Iron Steak Crock Pot recipe. Let’s break down the steps to prepare the steak, marinade, and optional vegetables.
Preparing the Flat Iron Steak
Begin by trimming any excess fat or silver skin from the 2 pounds of flat iron steak to prevent toughness during slow cooking. Cut the steak into large chunks, about 2 to 3 inches each, to help the meat retain moisture and cook evenly throughout the crock pot process.
- Use a sharp chef’s knife for clean cuts.
- Pat the steak pieces dry with paper towels to allow better marinade absorption.
Making the Marinade or Sauce
Our marinade blends savory and aromatic ingredients that tenderize and flavor the steak deeply during the slow cook.
| Ingredient | Measurement | Purpose |
|---|---|---|
| Soy sauce | ¼ cup | Adds umami and saltiness |
| Worcestershire sauce | 2 tablespoons | Deepens rich flavors |
| Beef broth | ½ cup | Keeps meat juicy |
| Olive oil | 2 tablespoons | Aids moisture retention |
| Minced garlic | 3 cloves | Provides aromatic punch |
| Brown sugar | 1 tablespoon | Balances acidity & adds caramel notes |
| Onion powder | 1 teaspoon | Enhances savory undertones |
| Smoked paprika | 1 teaspoon | Adds subtle smoky flavor |
| Fresh thyme | 2 teaspoons (chopped) | Infuses fresh herbal aroma |
To make the marinade:
- Combine all listed ingredients in a mixing bowl.
- Whisk thoroughly until the brown sugar dissolves and the ingredients are fully blended.
- Pour the marinade over the prepared steak pieces.
- Cover and refrigerate for at least 2 hours, preferably overnight, to maximize flavor infusion.
Preparing Vegetables (if applicable)
Adding vegetables like carrots, baby potatoes, yellow onion, and celery turns this dish into a hearty one-pot meal that absorbs the marinade flavors alongside the steak.
- Carrots: Peel and cut into 1-inch chunks.
- Baby potatoes: Wash thoroughly; halve if large.
- Yellow onion: Peel and slice into thick rings or wedges.
- Celery: Trim ends and slice into 1-inch pieces.
Arrange the vegetables at the bottom of the crock pot for even cooking and to act as a flavorful bed for the steak. Their moisture will help keep the steak tender while enhancing the overall richness of the dish.
Cooking Instructions
Follow these steps carefully to achieve a perfectly tender and flavorful Flat Iron Steak Crock Pot Recipe. Our method maximizes taste and texture with minimal effort.
Slow Cooking the Flat Iron Steak
First, place the marinated flat iron steak chunks into the crock pot. Use tongs to transfer the steak pieces carefully to avoid breaking them apart. Arrange them in a single layer or slightly overlapping for even cooking. Avoid overcrowding to ensure each piece cooks thoroughly and absorbs the marinade’s rich flavors. Pour any remaining marinade over the steak to enhance juiciness during slow cooking.
Adding Vegetables and Additional Ingredients
If opting for vegetables, layer them at the bottom of the crock pot before placing the steak. This base of carrots, baby potatoes, yellow onion, and celery will steam gently, absorbing the savory juices from the steak and marinade. This method enriches the entire dish and creates a perfect one-pot meal.
We recommend chopping vegetables into uniform sizes for even cooking:
| Vegetable | Preparation |
|---|---|
| Carrots | Peeled and cut into 2-inch pieces |
| Baby Potatoes | Washed whole or halved if large |
| Yellow Onion | Sliced into thick rings |
| Celery | Cut into 1-inch pieces |
Layer the vegetables evenly and season lightly with salt and pepper before topping with the steak.
Cooking Time and Temperature Settings
Set your crock pot to low and cook for 6 to 8 hours. This slow cooking process breaks down the steak’s connective tissues, resulting in melt-in-your-mouth tenderness. Cooking on high is possible but reduces quality, so reserve it for urgent meals, adjusting time to 3 to 4 hours.
| Setting | Temperature (Approx.) | Cooking Time | Result |
|---|---|---|---|
| Low | 190°F (88°C) | 6 – 8 hours | Tender, juicy, richly flavored |
| High | 300°F (150°C) | 3 – 4 hours | Faster but less tender |
Avoid opening the lid frequently to maintain consistent temperature and moisture. Let the crock pot do its magic while we prepare complementary sides.
Serving Suggestions
Enjoying our Flat Iron Steak Crock Pot Recipe to its fullest means serving it with complementary accompaniments and perfect slicing techniques. Let’s explore how to present and pair this tender, juicy steak for a memorable meal.
How to Slice the Steak
To preserve the tenderness and maximize flavor, always slice the flat iron steak against the grain. This means cutting perpendicular to the direction of the muscle fibers. Here is how we do it:
- Remove the steak chunks from the crock pot and let them rest for 5 minutes.
- Identify the grain by looking for long muscle fibers running through the meat.
- Using a sharp chef’s knife, slice across those fibers into thin slices about ¼ inch thick.
- Serve immediately for the best texture and appearance.
Slicing against the grain ensures each bite is tender, easy to chew, and allows the rich marinade to shine through every slice.
Recommended Side Dishes
Our slow-cooked flat iron steak pairs beautifully with sides that soak up its savory juices and balance its robust flavors. Here are our top recommendations:
| Side Dish | Description | Cooking Tip |
|---|---|---|
| Mashed Potatoes | Creamy and smooth, perfect for absorbing steak jus. | Use Yukon Gold potatoes for extra creaminess. |
| Roasted Vegetables | Carrots, Brussels sprouts, and parsnips add sweetness and texture. | Roast at 425°F with olive oil and herbs for 25 minutes. |
| Garlic Bread | Crunchy and buttery, it complements the steak’s umami. | Toast with fresh garlic butter until golden. |
| Steamed Green Beans | Light and crisp, they provide a fresh contrast. | Steam 5-7 minutes to retain crunch and color. |
| Cauliflower Rice | Low-carb alternative with mild flavor to highlight the steak. | Sauté with a bit of garlic and olive oil. |
We recommend plating the steak slices atop a bed of mashed potatoes or cauliflower rice for a hearty presentation. Garnish with fresh thyme or parsley to enhance aroma and color.
Make-Ahead Tips
Preparing the Flat Iron Steak Crock Pot Recipe in advance not only saves time but also deepens the flavors. Here are strategic tips for marinating, storing, and reheating that keep every bite tender and juicy.
Marinating in Advance
Marinating the steak overnight profoundly enhances its tenderness and flavor absorption. For best results:
- Combine the marinade ingredients thoroughly.
- Place the trimmed flat iron steak chunks in a resealable bag or airtight container.
- Pour the marinade over the steak ensuring each piece is well-coated.
- Refrigerate for at least 8 hours, ideally 12 to 24 hours for maximum flavor infusion.
This extended marinating time allows the soy sauce, Worcestershire sauce, garlic, and spices to penetrate deeply, making our slow-cooked steak melt in the mouth every time.
“The secret to a succulent flat iron steak is patience during marination.”
Storing and Reheating Leftovers
Proper storage and reheating maintain the quality of our slow-cooked flat iron steak:
| Step | Instruction |
|---|---|
| Storage | Cool leftovers to room temperature within 2 hours. |
| Transfer steak and vegetables with juices to airtight containers. | |
| Refrigerate up to 3–4 days or freeze up to 3 months. | |
| Reheating – Stovetop | Heat gently in a covered skillet over low heat, adding beef broth to restore moisture. |
| Reheating – Microwave | Cover dish loosely; reheat at 50% power in 1-minute bursts to prevent drying out. |
| Freezer Thawing | Thaw overnight in the refrigerator for even reheating. |
When reheating, avoid high heat which can toughen the steak. Keeping the juices or adding a splash of beef broth ensures the flat iron steak remains flavorful and tender, preserving the juicy texture we love.
Conclusion
This flat iron steak crock pot recipe is a game-changer for anyone looking to enjoy a tender flavorful meal with minimal effort. It’s perfect for busy days when we want something hearty without spending hours in the kitchen. The slow cooking process brings out the best in the steak and allows the seasonings to deeply infuse every bite.
Whether you’re meal prepping or cooking for family dinner, this recipe offers flexibility and delicious results every time. Pair it with your favorite sides and enjoy a satisfying dish that feels both comforting and special. Give it a try and make your weeknight dinners easier and more delicious.
Frequently Asked Questions
What makes flat iron steak ideal for cooking in a crock pot?
Flat iron steak is tender and flavorful, and slow cooking in a crock pot allows it to fully absorb seasonings while becoming juicy and tender, perfect for easy, flavorful meals.
What ingredients are needed for the flat iron steak crock pot recipe?
Key ingredients include 2 pounds of trimmed flat iron steak, soy sauce, Worcestershire sauce, beef broth, olive oil, garlic, brown sugar, onion powder, smoked paprika, fresh thyme, and optional vegetables like carrots and baby potatoes.
What equipment do I need to cook flat iron steak in a crock pot?
A crock pot or slow cooker (4-6 quarts) with low/high settings is essential, plus kitchen tools like a sharp knife, cutting board, measuring spoons, mixing bowl, tongs, and a wooden spoon or spatula.
How should I prepare the flat iron steak before cooking?
Trim excess fat, cut steak into large chunks, and marinate in the prepared sauce for at least 2 hours or overnight to enhance flavor and tenderness.
Can I cook vegetables with the flat iron steak in the crock pot?
Yes, add vegetables like carrots, onions, celery, and baby potatoes at the bottom of the crock pot to absorb marinade and create a flavorful one-pot meal.
What is the recommended cooking time and temperature for crock pot flat iron steak?
Cook on low for 6-8 hours for best tenderness. High setting (3-4 hours) can be used if short on time, but slow cooking yields better results.
How do I slice the flat iron steak for serving?
Slice the steak against the grain for maximum tenderness and flavor. Serve immediately for the best texture.
What side dishes go well with crock pot flat iron steak?
Mashed potatoes, roasted vegetables, garlic bread, steamed green beans, and cauliflower rice complement the steak well.
Can I prepare the flat iron steak crock pot meal ahead of time?
Yes, marinate the steak overnight and store leftovers in airtight containers in the fridge or freezer. Reheat gently to maintain juiciness.
How do I reheat leftover crock pot flat iron steak without drying it out?
Reheat gently on the stovetop with beef broth or use low power in the microwave to keep the steak tender and juicy.