Here’s one better than caramel apples on a stick.
These are warm and caramelicious. 

4 to 5 large apples
1/2 cup caramel topping
1 cup chopped walnuts
Heat coals, gas grill to medium heat or oven at 350°. Fold four 18 x 18 ~ inch pieces heavy ~ duty aluminum foil crosswise in half; spray with cooking spray. Cut apples in half; remove cores. Cut each half into 4 wedges.
Place 6 to 8  apple wedges in center of each piece of foil. Drizzle 2 to 3 tablespoons caramel topping and 2 tablespoons of walnuts over apple wedges on each piece of foil. Wrap foil securely around apples.
Grill or bake foil packets, seam sides up, 8 to 10 inches from medium ~ low heat 10 to 12 minutes or until apples are crisp ~ tender. Open packets carefully to avoid steam; CARAMEL WILL BE HOT!! Serve immediately. Serves 4 to 8 depending on size of apples.