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Peanut Butter & Flax Crunchy Dog Biscuits

These Peanut Butter & Flax Crunchy Dog Biscuits are oven-baked, crunchy dog treats made for occasional feeding only. They’re designed for dog parents who want a classic, firm biscuit with a nutty aroma and a satisfying crunch. Peanut butter is a favorite flavor in dog treats when used carefully and only when it contains NO xylitol. Flaxseed is included in a small, ground amount to add texture and visual interest to the biscuits—not for any medical or nutritional claim. Combined with oats, these ingredients create a sturdy dough that bakes evenly and dries into crisp, shelf-friendly biscuits. These biscuits are meant for rewarding, enrichment, or light training use. They are not complete meals and should always be fed in moderation as part of a balanced diet.
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Ingredients Equipment Method Notes

Ingredients
  

  • ½ cup natural peanut butter NO xylitol, minimal salt
  • 1 tablespoon ground flaxseed
  • 1½ cups oat flour
  • ½ cup rolled oats
  • 1 large egg
  • ¼ –½ cup water as needed
Ingredient notes:
  • Always double-check peanut butter labels for xylitol—it is toxic to dogs.
  • Flaxseed must be ground not whole, and used in small amounts only.
  • Oat flour may be store-bought or made by finely grinding rolled oats.

Equipment

  • Large mixing bowl
  • Measuring cups and measuring spoons
  • Silicone spatula or wooden spoon
  • Rolling Pin
  • Baking sheet
  • Parchment paper
  • Knife or cookie cutters
  • Wire cooling rack

Method
 

Step 1: Prepare the Oven and Pan
  1. Preheat your oven to 350°F (175°C).
  2. Line a baking sheet with parchment paper.
Step 2: Mix the Wet Ingredients
  1. In a large bowl, add peanut butter and egg.
  2. Stir until smooth and evenly combined.
Step 3: Add the Flaxseed
  1. Sprinkle the ground flaxseed into the bowl.
  2. Mix well so it’s evenly distributed.
Step 4: Add the Dry Ingredients
  1. Add oat flour and rolled oats to the mixture.
  2. Stir until a thick dough begins to form.
Step 5: Adjust Dough Consistency
  1. Add water gradually while mixing.
  2. Stop once the dough is firm, smooth, and easy to roll.
Step 6: Roll the Dough
  1. Place dough on a lightly floured surface.
  2. Roll out to about ¼-inch thickness.
Step 7: Cut the Biscuits
  1. Cut into shapes or squares using a knife or cookie cutters.
  2. Re-roll scraps as needed.
Step 8: Bake Until Firm
  1. Transfer biscuits to the prepared baking sheet with slight spacing.
  2. Bake for 28–32 minutes until firm and lightly golden underneath.
Step 9: Dry for Extra Crunch
  1. Turn off the oven and leave biscuits inside with the door slightly open for 10–15 minutes.
  2. This helps remove excess moisture and enhances crunch.
Step 10: Cool Completely
  1. Move biscuits to a wire rack.
  2. Allow to cool fully before serving.

Notes

🧊 Storage & Reheating ❄️
Store fully cooled biscuits in an airtight container at room temperature for up to 4 days.
Refrigerate for up to 10 days or freeze for up to 3 months.
Allow frozen biscuits to thaw completely before serving. Do not microwave, as this can soften the crunch.
Reminder: These are treats only, not complete or balanced meals. Feed in moderation and introduce new treats gradually. Consult your veterinarian if your dog has health conditions or dietary restrictions.
🥄 Variations
Roll dough thinner for extra-crispy biscuits
Cut into mini squares for training treats
Replace part of the oat flour with brown rice flour
Bake a few minutes less for a gentler crunch
Introduce any variation slowly.
❓ 10 FAQs
Is peanut butter safe for dogs?
Yes, only if it contains no xylitol.
Is flaxseed safe for dogs?
Yes, when ground and used in small amounts.
Are these biscuits crunchy?
Yes, they are designed to bake up firm and crisp.
Can puppies eat these biscuits?
Yes, in small pieces and under supervision.
Are these grain-free?
No, they contain oats.
Can I use whole flaxseed?
No, flaxseed must be ground.
Do these treats replace meals?
No, they are occasional treats only.
Can I add honey or sweeteners?
No added sweeteners are recommended.
How often can I give crunchy treats?
Treats should make up a small portion of daily intake.
Should I talk to my vet first?
Yes, especially if your dog has special dietary needs.
🏁 Conclusion
These Peanut Butter & Flax Crunchy Dog Biscuits are a classic homemade option for dogs who love firm textures and nutty flavors. Easy to bake, freezer-friendly, and made with simple dog-safe ingredients, they’re perfect for occasional spoiling when fed responsibly.
Always introduce new treats gradually, keep portions appropriate, and rely on your veterinarian for guidance tailored to your dog’s individual needs.