Preheat oven to 375°F. Unroll crescent dough sheets onto work surface; separate into 6 rectangles. Using pizza cutter, cut into 36 long strips.
One at a time, pinch ends of 3 strips together and braid together; shape into round spiral, pinching ends underneath to seal. Place on parchment paper–lined baking sheet; repeat with remaining dough strips
Beat egg with 1 tbsp water; brush over top of dough. Bake for 10 to 12 minutes or until golden brown and baked through.
While still warm, place Twix Mini in center of each braid. Let cool completely or serve warm
TIP: Drizzle with pastel-colored frosting before serving.