Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to use leftover sweet potato casserole [title] Make waffles. [step] Create a flavorful waffle batter using basic ingredients and leftover sweet potato casserole. If your casserole is heavily spiced, you'll only need to add milk, eggs, butter, and baking powder.

Ending1: Cook the waffles on a hot waffle iron and serve them right away. [substeps] You can top the waffles with chopped pecans or whipped cream. Ending2: You'll also use sweetened condensed milk to create your own special waffle batter with your favorite cooking mix. You can use non-stick cooking spray to prevent sticking. Ending3: [title] Grease and put the waffle iron. [step] Open the waffle iron at face height and turn it on low. Ending4: [substeps] You can also make regular waffles, which are made with natural ingredients like milk, butter, and eggs. Make sure you make them in a new pot because it's easier to put them into the oven again.

Answer format: ending1/ending2/ending3/ending4