In a spacious mixing bowl, add your protein powder, coconut flour, almond flour, and optional sugar. Mix these dry ingredients well.

Introduce the Greek yogurt and blueberry puree to the dry mixture. Combine ingredients to create a sticky dough.

Transfer the dough to a clean surface and shape it into a rectangular mound, about one inch thick. Wrap tightly in plastic wrap and refrigerate for at least 30 minutes.

After chilling, slice the dough into even bars of your preferred size, aiming for about 12 bars.

In a microwave-safe bowl, heat the white chocolate chips in the microwave at 20-second intervals until completely melted.

Dip each bar into the melted chocolate, ensuring they are fully coated, then place on parchment paper to set.

Let bars rest at room temperature or in the refrigerator to set the chocolate completely, about 15-20 minutes.