🐾 Why This Recipe Is Good for Dogs
These crunchy biscuits deliver a savory protein boost using tuna paired with digestion-friendly oats. Tuna (packed in water, no salt) provides lean protein and omega-3s that support skin, coat, and brain health, while oats contribute soluble fiber for steady energy and gut comfort. Baked to a firm crunch, these biscuits are ideal for dogs who love bold flavors without heavy fats or additives.
🧰 Equipment Needed
- Mixing bowl
- Fork or food processor
- Measuring cups
- Baking sheet
- Parchment paper or silicone baking mat
- Rolling pin
- Cookie cutters or knife
- Cooling rack
🛒 Ingredients (dog-safe only — no toxic foods)
- 1 can tuna in water, no salt added, drained very well
- 1 egg
- 1½ cups oat flour (or rolled oats blended into flour)
- 2–4 tablespoons water (as needed to bind)
Optional: 1 tablespoon finely grated carrot for extra fiber and color
👩🍳 Directions
Step 1: Preheat the oven.
Set oven to 350°F (175°C) and line a baking sheet with parchment.
Step 2: Prepare the tuna.
Flake the drained tuna finely with a fork (or pulse briefly in a processor).
Step 3: Mix the base.
In a bowl, combine tuna and egg until evenly blended.
Step 4: Add flour gradually.
Stir in oat flour until a firm dough forms. Add water a tablespoon at a time if the dough feels dry.
Step 5: Roll and cut.
Roll dough to about ¼-inch thickness. Cut into biscuit shapes or small squares.
Step 6: Bake until crunchy.
Bake for 22–26 minutes, until biscuits are firm and lightly golden.
Step 7: Cool completely.
Transfer to a cooling rack. Biscuits will crisp further as they cool.
🍽️ Serving Size & Storage Safety for Dogs ❄️
Serving Size (treat guidelines):
- Small dogs: 1 biscuit
- Medium dogs: 1–2 biscuits
- Large dogs: 2–3 biscuits
Treats should stay under 10% of daily calories.
Storage ❄️:
- Room temperature: up to 5 days in an airtight container ❄️
- Refrigerator: up to 2 weeks ❄️
- Freezer: up to 3 months ❄️
Ensure biscuits are fully cooled before storing to maintain crunch.
⚕️ Nutritional Notes (macros or benefits)
- Tuna: Lean protein, omega-3 fatty acids for skin/coat and cognitive support
- Oats: Soluble fiber for digestion and steady energy
- Egg: Complete protein and natural binder
These biscuits are savory, low-fat, and fiber-balanced.
🥄 Variations (dog-safe only)
- Tuna & Pumpkin Crunch: Replace 2 tablespoons water with pumpkin purée
- Extra-Crispy Version: Bake an additional 5–7 minutes
- Mini Training Crunch: Cut into tiny squares
- Grain-Free Option: Use coconut flour (start with ⅓ cup; very absorbent)
- Tuna & Parsley Fresh Crunch: Add 1 teaspoon finely chopped parsley
❓ 10 FAQs
- Is tuna safe for dogs?
Yes—in moderation, packed in water with no salt added. - Can dogs eat tuna treats often?
Occasionally is best; rotate proteins. - Why drain tuna well?
Excess moisture affects dough and storage. - Are these biscuits hard?
Crunchy, not rock-hard. - Can puppies eat these?
Yes—break into small pieces. - Can I use canned salmon instead?
Yes—no salt added and bones removed. - Do these smell fishy?
Mildly—dogs love the aroma. - Can I air-fry them?
Yes—325°F for 8–10 minutes, checking crispness. - Is oat flour better than wheat?
Oats are gentler for many dogs. - How do I keep them crunchy longer?
Cool fully and store airtight.
🏁 Conclusion
Tuna & Oat Crunch Dog Biscuits are a flavorful, protein-rich treat made with simple, dog-safe ingredients. With satisfying crunch, gentle fiber, and freezer-friendly storage, these biscuits are perfect for savory snack lovers and everyday rewarding. Easy to bake and loved by dogs—an excellent addition to your homemade treat rotation.
Tuna & Oat Crunch Dog Biscuits – Savory, Protein-Rich Crunch with Gentle Fiber
Ingredients
Equipment
Method
- Set oven to 350°F (175°C) and line a baking sheet with parchment.
- Flake the drained tuna finely with a fork (or pulse briefly in a processor).
- In a bowl, combine tuna and egg until evenly blended.
- Stir in oat flour until a firm dough forms. Add water a tablespoon at a time if the dough feels dry.
- Roll dough to about ¼-inch thickness. Cut into biscuit shapes or small squares.
- Bake for 22–26 minutes, until biscuits are firm and lightly golden.
- Transfer to a cooling rack. Biscuits will crisp further as they cool.
Notes
Ensure biscuits are fully cooled before storing to maintain crunch. ⚕️ Nutritional Notes (macros or benefits) Tuna: Lean protein, omega-3 fatty acids for skin/coat and cognitive support Oats: Soluble fiber for digestion and steady energy Egg: Complete protein and natural binder These biscuits are savory, low-fat, and fiber-balanced. 🥄 Variations (dog-safe only) Tuna & Pumpkin Crunch: Replace 2 tablespoons water with pumpkin purée Extra-Crispy Version: Bake an additional 5–7 minutes Mini Training Crunch: Cut into tiny squares Grain-Free Option: Use coconut flour (start with ⅓ cup; very absorbent) Tuna & Parsley Fresh Crunch: Add 1 teaspoon finely chopped parsley ❓ 10 FAQs Is tuna safe for dogs?
Yes—in moderation, packed in water with no salt added. Can dogs eat tuna treats often?
Occasionally is best; rotate proteins. Why drain tuna well?
Excess moisture affects dough and storage. Are these biscuits hard?
Crunchy, not rock-hard. Can puppies eat these?
Yes—break into small pieces. Can I use canned salmon instead?
Yes—no salt added and bones removed. Do these smell fishy?
Mildly—dogs love the aroma. Can I air-fry them?
Yes—325°F for 8–10 minutes, checking crispness. Is oat flour better than wheat?
Oats are gentler for many dogs. How do I keep them crunchy longer?
Cool fully and store airtight. 🏁 Conclusion
Tuna & Oat Crunch Dog Biscuits are a flavorful, protein-rich treat made with simple, dog-safe ingredients. With satisfying crunch, gentle fiber, and freezer-friendly storage, these biscuits are perfect for savory snack lovers and everyday rewarding. Easy to bake and loved by dogs—an excellent addition to your homemade treat rotation.
