Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make cornflake chocolate chip peppermint cookies [title] Preheat the oven to 270 ° f (132 ° c) and prepare a cookie sheet pan. [step] Use parchment/wax paper for lining the pan. [title] Crush the cornflakes.

Ending1: [step] Add three tablespoons of crushed cornflakes to the mixing bowl with the butter and mix thoroughly. The cornflakes will part as they form, but the cornflakes will break down and form smooth, sweet chocolate. Ending2: [step] There are a few ways you can crush and extract cornflakes, but if you use a mortar and pestle, it is useful to avoid mashing. Find the nearest can of crushed cornflakes in your favorite recipes. Ending3: [step] You can either use a bowl or plastic bag. Put the cornflakes into either container and crush with your hands to create pieces that are about 1/4 the original size of the flakes. Ending4: [step] Use a rolling pin, a brownie dough cutter, or a mortar and pestle. [substeps] Remove the baked 1 package of crushed cornflakes and set aside.

Answer format: ending1/ending2/ending3/ending4