Make apples: Preheat oven to 350° and grease a medium cooking dish with cooking spray. In a medium skillet over medium-high heat, melt 1 tbsp butter. Add apples, brown sugar, cinnamon, and salt. Cook until apples are tender, about 5 minutes. Set aside.
Remove biscuits from can and stretch slightly. Add one caramel candy and a large scoop of apple mixture to the center of a biscuit and create a ball, pinching together the loose ends of biscuit dough.
Place into a cooking dish and brush with melted butter. Sprinkle with cinnamon sugar and bake until golden, 30 to 35 minutes.
Meanwhile, make glaze: Mix together powdered sugar and cream in a medium bowl. When biscuits are out of the oven, drizzle with glaze and serve.