Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to flatten chicken [title] Cut thick chicken breasts. [step] If you are working with especially thick breasts, it will make your job easier if you cut them before flattening them. Using a sharp knife, cut them horizontally.

Ending1: They will need a lot of room and will get tough very quickly. [substeps] If you are working with larger breasts, the chicken breasts may take longer to flatten. Ending2: You can cut it all the way through, leaving you with two separate pieces, or you can cut it almost all the way through and then open it like a book. [title] Place the thawed chicken breast between wax paper or plastic wrap. Ending3: Leave the outer edge at about an inch off. You should also cut the breast apart using a melon baller. Ending4: [substeps] Make sure that you don't cut through the extra skin on the breast. The breasts should be approximately one inch thick.

Answer format: ending1/ending2/ending3/ending4