Banana, Peanut Butter, and Blueberry Dog Biscotti (Easy Recipe) -

Biscotti is one of those treats that looks fancy but is secretly simple. You bake a dough log, slice it, and bake the slices a second time until they’re dry and crunchy.

For dogs, that twice baked method makes a long, sturdy, crunchy treat that’s perfect for gnawing on, and it works beautifully with dog friendly flavors like banana, peanut butter, and blueberry.

These biscotti are made with whole wheat flour, ripe banana, xylitol free peanut butter, and fresh or frozen blueberries, with no added sugar.

If your dog loves my Strawberry Banana Cookies for Dogs or my Blueberry Dog Treats, this crunchy version is a fun next step.

Why You’ll Love These Dog Biscotti

A few reasons this recipe is worth the second bake.

Crunchy and long lasting. Twice baking dries the biscotti and gives them a satisfying snap.

Three star flavors. Banana, peanut butter, and blueberry, a combination dogs love.

No added sugar. Ripe banana and blueberries provide natural sweetness.

Easy to make. A simple dough, shaped by hand with no rolling pin or cutters.

Fun shape. Long, sturdy biscotti sticks that are easy to hold and portion.

Freezer friendly. Bake a big batch and keep extras ready.

Are These Ingredients Safe for Dogs?

All three star ingredients are dog friendly, with a few cautions.

Bananas are a safe, popular treat in moderation. Use a ripe banana for the best flavor.

Blueberries are safe and a favorite for many dogs. Fresh or frozen, plain blueberries work well.

Peanut butter is safe when it’s xylitol free. Xylitol is toxic to dogs and appears in some peanut butter brands, so read the label every time.

Keep it plain. No sugar, chocolate, raisins, or sweeteners.

Watch the hardness. Biscotti are crunchy and can be tough on teeth. Skip hard biscuits for dogs with dental problems, and supervise chewing.

For more peanut butter basics, my 3 Ingredient Peanut Butter Dog Gummies covers what to look for on the label.

Ingredients You’ll Need

Here’s what goes into the dough and what each ingredient contributes.

Whole wheat flour gives the biscotti a sturdy, crunchy structure.

One ripe banana adds natural sweetness and moisture, and helps hold the dough together.

Xylitol free peanut butter adds flavor and richness.

Blueberries add a pop of fruity flavor and antioxidants.

One egg binds the dough.

Water, if needed, adjusts the consistency.

Ingredient List

2 cups whole wheat flour, plus more for shaping
1 ripe banana, mashed
1/3 cup xylitol free peanut butter
1/2 cup blueberries, fresh or frozen, lightly mashed
1 large egg
2 to 4 tablespoons water, only if needed

How to Make Dog Biscotti

Preheat your oven to 350°F and line a baking sheet with parchment paper.
In a large bowl, mash the banana, then stir in the peanut butter and egg until smooth.
Add the flour and mix until a stiff dough forms. If it’s too dry, add water a tablespoon at a time.
Gently fold in the blueberries. Don’t overmix, or the dough will turn purple.
Turn the dough onto a floured surface and shape it into a log about 10 inches long, 3 inches wide, and 3/4 inch thick. Place it on the baking sheet.
Bake for 25 minutes, until the log is firm and lightly golden.
Let the log cool on the pan for 10 minutes, then lower the oven temperature to 300°F.
Use a serrated knife to slice the log into 1/2 inch slices. Lay the slices flat on the baking sheet.
Bake for 15 minutes, flip, then bake for another 15 minutes, until dry and crisp.
Turn off the oven and leave the biscotti inside for 30 minutes, then cool completely on a wire rack.

Getting the Right Texture

The second bake is what makes biscotti crunchy, so don’t skip it. The slices should feel dry and firm, and snap cleanly when broken.

Let the log cool slightly before slicing. Slicing a hot log crumbles it, and slicing a cold log can crack it.

Use a serrated knife and a gentle sawing motion for clean slices.

For softer, chewier biscotti, bake the slices for a shorter time on the second bake.

For smaller dogs, slice the log into narrower, thinner pieces, or cut the biscotti in half.

Recipe Variations

Once you’ve made the base recipe, these are easy to try.

Banana and peanut butter biscotti. Skip the blueberries for a classic duo.

Strawberry banana biscotti. Replace the blueberries with chopped strawberries.

Oat version. Replace some of the flour with oat flour, like in my Coconut Oil Dog Treats for Healthy Skin.

Pumpkin biscotti. Replace the banana with plain pumpkin puree, inspired by my Easy 4 Ingredient Pumpkin Dog Biscuits.

Mini biscotti bites. Slice into small pieces after the first bake for training treats.

Common Mistakes to Avoid

Using peanut butter with xylitol. Always check the label.

Skipping the second bake. Without it, you just have a soft loaf.

Slicing the log while it’s hot. It crumbles.

Overmixing the blueberries. The dough turns gray and muddy.

Making them too thick. Thick slices stay soft in the middle.

Giving a hard biscotti to a dog with dental problems. Check with your veterinarian first.

How Many Biscotti Can a Dog Have?

One or two small biscotti slices is plenty for a small dog, and two to three for a larger dog.

Treats should make up only a small part of your dog’s daily calories, with the rest coming from a complete and balanced diet.

Because bananas and blueberries contain natural sugar, keep portions modest, and supervise your dog while they chew.

How to Store Dog Biscotti

Because these contain banana, blueberries, and egg, they don’t last as long as plain biscuits.

Room temperature. Store fully cooled, fully dry biscotti in an airtight container for up to 5 days.

Refrigerator. Keep them in the fridge for up to 2 weeks.

Freezer. Freeze in a sealed bag or container for up to 3 months.

Check before serving, and discard any that smell off, feel soft, or show signs of mold. For treats built to last even longer, see my DIY Dog Biscuits That Last for Weeks.

Can You Freeze Dog Biscotti?

Yes, and freezing is the easiest way to keep a big batch fresh.

Cool the biscotti completely.
Arrange them in a single layer on a tray and freeze for about an hour.
Transfer to a labeled freezer bag or container.
Thaw a few at room temperature for 10 minutes before serving.

More Homemade Treat Ideas

For a wider look at feeding your dog well, check out 7 Healthiest Homemade Dog Foods.

Frequently Asked Questions

What is dog biscotti? It’s a twice baked treat, shaped as a log, sliced, and baked again until crisp, so it’s long, sturdy, and crunchy.

Can dogs eat blueberries? Yes, plain blueberries are a safe, popular treat in moderation.

Can I use frozen blueberries? Yes, but don’t thaw them first, or they’ll bleed into the dough.

Can I skip the egg? Yes, replace it with 2 extra tablespoons of mashed banana and a bit more flour.

Can I use a different flour? Oat flour works well. Whole wheat flour gives the crunchiest result.

How long do they last? About 5 days at room temperature, 2 weeks in the fridge, and 3 months in the freezer.

Can puppies have biscotti? Very hard treats can be tough on young teeth, so check with your veterinarian first.

Recipe Card

Recipe name: Banana, Peanut Butter, and Blueberry Dog Biscotti

Summary: Crunchy, twice baked dog biscotti made with whole wheat flour, banana, xylitol free peanut butter, and blueberries.

Servings: About 16 biscotti slices

Prep time: 15 minutes

Cook time: 55 minutes

Total time: About 1 hour 10 minutes, plus cooling

Estimated cost: Budget friendly

Course: Dog treat

Cuisine: Homemade pet food

Keywords: dog biscotti, banana peanut butter blueberry dog treats, homemade dog biscotti, easy dog treat recipe, crunchy dog treats

Equipment: Mixing bowl, baking sheet, parchment paper, serrated knife

Ingredients:

2 cups whole wheat flour
1 ripe banana, mashed
1/3 cup xylitol free peanut butter
1/2 cup blueberries
1 large egg
2 to 4 tablespoons water, if needed

Instructions:

Preheat oven to 350°F.
Mix banana, peanut butter, and egg, then stir in flour.
Fold in blueberries and shape into a log.
Bake 25 minutes, then cool 10 minutes.
Slice, lower oven to 300°F, and bake slices 15 minutes per side.
Cool completely before storing.

A Final Note on Baking Biscotti for Your Dog

There’s something fun about a treat that looks like it came from a bakery, and my dog treats these like a prize to be carried off and savored. Keep them plain, keep portions modest, and enjoy the satisfying crunch.