Spent Grain Dog Treats Recipe Made Easy and Healthy

Updated On: October 18, 2025

If you’re a homebrewer or someone who loves sustainable cooking, you probably have a stash of spent grain sitting around after your brewing sessions. Instead of tossing this nutritious byproduct, why not turn it into something your furry friend will adore?

Spent grain dog treats are a fantastic way to reuse this ingredient, packed with fiber, protein, and essential nutrients that promote canine health. Plus, making your own dog treats ensures you know exactly what goes into them—no preservatives, no additives, just wholesome goodness.

In this post, I’ll walk you through a simple yet delicious recipe for spent grain dog treats that your pup will love. Whether you have a large dog or a tiny pup, these treats can be tailored to suit all sizes and tastes.

Ready to create some tail-wagging snacks? Let’s dive in!

Why You’ll Love This Recipe

There are countless reasons to try making spent grain dog treats at home. First and foremost, it’s an excellent way to reduce waste by repurposing spent grains from your brewing process.

These grains are rich in fiber and protein, which contribute to your dog’s digestive health and muscle maintenance.

Another perk is the control over ingredients. Many commercial dog treats contain fillers, artificial flavors, and preservatives that might not be ideal for your pet’s diet.

By making your own, you ensure every bite is wholesome and nutritious.

Finally, homemade treats are a fantastic bonding experience. Your dog will appreciate the fresh smells and flavors, and you can feel great about giving them a healthy, homemade snack.

Plus, these treats store well and make great rewards during training or fun play sessions.

Ingredients

  • 2 cups spent grain (fresh or dried, slightly squeezed to remove excess moisture)
  • 1 cup whole wheat flour (or oat flour for a gluten-free option)
  • 1/2 cup rolled oats
  • 1/4 cup natural peanut butter (ensure it contains no xylitol, which is toxic to dogs)
  • 1/4 cup unsweetened applesauce
  • 1 large egg
  • 1 tablespoon honey (optional, for a touch of sweetness)
  • 1 teaspoon cinnamon (optional, adds flavor and is safe for dogs)
  • Water (as needed, to bind the dough)

Equipment

  • Mixing bowls
  • Measuring cups and spoons
  • Baking sheet
  • Parchment paper or silicone baking mat
  • Rolling pin (optional but helpful)
  • Cookie cutters (bone-shaped or any fun shapes)
  • Oven
  • Cooling rack

Instructions

  1. Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper or a silicone mat.
  2. Prepare the spent grains: If using fresh spent grains, gently squeeze out excess moisture. For dried grains, ensure they are finely ground or broken up for better texture.
  3. Mix the wet ingredients: In a large bowl, combine the peanut butter, applesauce, egg, and honey. Stir well until smooth and uniformly blended.
  4. Add the dry ingredients: Gradually incorporate the spent grains, whole wheat flour, rolled oats, and cinnamon (if using) into the wet mixture. Stir to combine.
  5. Form the dough: The mixture should come together into a firm dough. If it’s too dry, add water one tablespoon at a time. If too sticky, sprinkle in a bit more flour.
  6. Roll out the dough: On a lightly floured surface, roll the dough to about 1/4-inch thickness. This thickness ensures treats will bake evenly and have a nice crunch.
  7. Cut into shapes: Use cookie cutters to create fun shapes or simply slice into small squares for easy bite-sized treats.
  8. Bake the treats: Place the cutouts on the prepared baking sheet and bake for 25-30 minutes, or until golden brown and firm to the touch.
  9. Cool completely: Remove treats from the oven and transfer them to a cooling rack. Allow to cool fully before offering to your dog.
  10. Store properly: Keep your homemade spent grain dog treats in an airtight container. They’ll last up to two weeks at room temperature or can be frozen for longer storage.

Tips & Variations

“Always introduce new treats gradually and monitor your dog for any adverse reactions.”

  • Customize flavors: Add mashed pumpkin, sweet potato, or carrots to the dough for variety and added nutrition.
  • Grain-free option: Substitute whole wheat flour with coconut flour or almond flour for dogs sensitive to grains.
  • Make it chewy: Reduce baking time slightly for softer, chewier treats that older dogs may prefer.
  • Freeze extras: These treats freeze well; thaw as needed to keep them fresh and tasty.
  • Watch for allergies: Avoid peanut butter if your dog has allergies and try sunflower seed butter as a safe alternative.

Nutrition Facts

Nutrient Amount per Treat (approx.)
Calories 40 kcal
Protein 2.5 g
Fat 1.8 g
Carbohydrates 5 g
Fiber 1.2 g
Sugar 0.5 g (natural from applesauce/honey)

Note: Nutritional values may vary depending on specific ingredients and portion sizes.

Serving Suggestions

These spent grain dog treats are perfect as training rewards, midday snacks, or even as part of your dog’s daily feeding routine. Break larger treats into smaller pieces to control portion size, especially for small breeds.

For a fun twist, try dipping the treats lightly in plain yogurt and freezing them for a cool summer snack. These make excellent enrichment treats that keep your dog engaged and happy.

If you’re hosting doggy playdates, consider gifting homemade spent grain treats as party favors—it’s a thoughtful and healthy way to share the love!

Conclusion

Making spent grain dog treats is a rewarding and eco-friendly way to pamper your pooch while reducing waste from homebrewing. This recipe combines nutritious ingredients that promote healthy digestion and provide energy, all wrapped up in tasty, easy-to-make treats.

With simple steps and versatile options, you can customize these treats to suit any dog’s preferences or dietary needs.

Not only will your dog appreciate the homemade goodness, but you’ll also enjoy the satisfaction of creating something beneficial and delicious from a byproduct that might otherwise be discarded. Try this recipe today and turn your spent grains into tail-wagging joy!

📖 Recipe Card: Spent Grain Dog Treats

Description: A healthy and eco-friendly dog treat made from leftover spent grains. Perfect for rewarding your pup with a nutritious snack.

Prep Time: PT15M
Cook Time: PT25M
Total Time: PT40M

Servings: 24 treats

Ingredients

  • 1 1/2 cups spent grain (well-drained)
  • 1 cup whole wheat flour
  • 1/2 cup oat flour
  • 1/4 cup natural peanut butter (unsalted, no xylitol)
  • 1/2 cup water
  • 1 egg
  • 1 tablespoon honey
  • 1 teaspoon baking powder

Instructions

  1. Preheat oven to 350°F (175°C).
  2. In a large bowl, combine spent grain, whole wheat flour, oat flour, and baking powder.
  3. Add peanut butter, honey, egg, and water; mix until a dough forms.
  4. Roll out dough to about 1/4 inch thickness on a floured surface.
  5. Cut into desired shapes using cookie cutters.
  6. Place treats on a parchment-lined baking sheet.
  7. Bake for 20-25 minutes until firm and golden.
  8. Let treats cool completely before serving to your dog.

Nutrition: Calories: 60 kcal per treat | Protein: 3 g | Fat: 2 g | Carbs: 7 g

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Photo of author

Marta K

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