Place silicone paw molds on a small baking sheet or line a small tray with parchment paper if using no molds.

Add the yogurt to a medium mixing bowl.

Add the 1/2 cup blueberries to the bowl and lightly mash or blend them into the yogurt until the mixture turns purple and fairly smooth.

If the mixture seems very thin, stir in the mashed banana or pumpkin puree until slightly thickened and creamy.

Fold in the finely chopped blueberries and ground flaxseed if using, stirring just until evenly distributed.

Carefully pour or spoon the mixture into the paw molds, or spoon small pools onto the parchment-lined tray, leaving space between each treat.

Gently tap the baking sheet or tray on the counter to release air bubbles and smooth the tops with the back of a spoon.

Transfer the molds or tray to the freezer, keeping it level so the treats keep their shape.

Freeze for at least 3 hours, or until the treats are completely firm in the center when pressed lightly.

Once frozen solid, pop the treats out of the molds or lift them from the parchment and place them in an airtight freezer-safe container.

Let a treat sit at room temperature for 3 to 5 minutes to soften slightly, then serve 1 to 2 paw treats to your dog, adjusting the portion for your dog’s size and vet guidance.

Store the remaining treats in the freezer and use within 1 to 2 months for best quality.