To prepare a nestle toll house caramel filled delightfulls chocolate chip cookies recipe, first you need to prepare the ingredients. First, you will need the Nestle Toll House Caramel Filling. You can find it at your local grocery store, or you can buy it online. Place the chocolate chips and butter into the mixing bowl. Then, add the egg, vanilla, and salt. Mix until the mixture is evenly combined. Add the buttermilk and mix until it's completely incorporated. Finally, stir in the flour, baking powder, salt and vanilla extract. Pour the batter into your prepared cookie sheet. Bake the cookies for 12 to 15 minutes or until they are lightly browned. Remove from the oven and allow them to cool for 5 minutes before serving.