Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make homemade italian ricotta cheese gnocchi [title] Mix together in a large bowl, mix 1 pound of ricotta cheese with 1 slightly beaten egg and 1 teaspoon salt. [step] Add flour and work mixture with your hands until a soft dough is formed. If your fingers are sticky, add some more flour to your hands.

Ending1: [title] Turn the dough onto a floured board. [step] Knead lightly until the dough becomes smooth and firm. Ending2: When dough is formed, roll your hands and slide them over the top of the ricotta dough. Cover with plastic wrap and refrigerate for 4 hours. Ending3: Roll the dough around until it is full but not coarse. You don't have to smooth it with your fingers; you can just press and roll. Ending4: This will let the breadcrumbs mix in better. After 2-3 minutes, work dough onto a floured surface.

Answer format: ending1/ending2/ending3/ending4