01 - Whisk together the protein powder, oat flour, coconut flour, and sea salt in a large bowl until evenly blended.
02 - Add the almond butter, maple syrup, and vanilla extract to the dry mixture. Mix thoroughly until a crumbly dough forms.
03 - Gradually add milk, 1 tablespoon at a time, mixing until the dough becomes firm but pliable and holds its shape without crumbling.
04 - Gently fold in the rainbow sprinkles until evenly distributed throughout the dough.
05 - Roll the dough into 1-inch balls. Optionally roll each ball in additional sprinkles for decoration.
06 - Place the balls on a parchment-lined baking tray and refrigerate for at least 30 minutes until firm.