Make Apple Filling: In a skillet, melt 1 tbsp unsalted butter. Add 2 peeled, finely chopped apples, 2 tbsp brown sugar, 1 tsp ground cinnamon, and a pinch of salt. Sauté for 5-7 minutes until slightly softened. Let cool completely.
Preheat & Prep: Preheat oven to 375°F (190°C). Line a baking sheet with parchment paper.
Form Bombs: Unroll 1 can (16.3 oz) refrigerated biscuit dough and separate into 8 biscuits. Flatten each biscuit. Place one caramel candy and a spoonful of cooled apple filling in the center of each. Wrap the dough around the filling, pinching seams tightly to seal.
Bake: Place bombs seam-side down on the prepared baking sheet. Brush tops with 2 tbsp melted butter. Bake for 12-15 minutes, until golden brown.
Serve Warm: Let cool slightly for 5-10 minutes. Serve warm, optionally dusted with cinnamon sugar.