Caramel Apple Poke Cake

Ingredients

• 1 8-ounce container frozen whipped topping, thawed
• 1/3 cup vegetable oil
• 2 teaspoons vanilla extract
• 1 box vanilla cake mix
• 2/3 cup toffee bits
• 3 large eggs
• 1/2 cup water
• 1 cup caramel sauce, room temperature or slightly warmed
• 1 20-ounce can apple pie filling, coarsely chopped
• 1 tablespoon apple pie spice