Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make pupusas [title] Make the pupusa dough. [step] Mix the masa harina, salt, and flour in a bowl. Stir it together till it forms a paste-like dough.

Ending1: [title] Squeeze the dough until it forms a ball. [step] Roll the dough out on a large, floured plate. Ending2: [title] Spread the pupusa mixture across the baking sheet. [step] Let it cool for at least 24 hours so the dough will stay soft. Ending3: It should be smooth, not lumpy. [substeps] If it's still too lumpy after stirring, add one teaspoon of water at a time and stir out the lumps till it's smooth. Ending4: You can find lumps on the bottom of the bowl that can help keep the pupusa dough moist while it cooks. [substeps] Since pupusas aren't very runny, it's best to use a funnel to pour in enough milk to cover the dough and reduce the cooking time.

Answer format: ending1/ending2/ending3/ending4