Drain the ricotta.
Mix. Combine the ricotta, salt, and egg yolks in a medium bowl. Stir until combined.
1 pound fresh ricotta ( 450 grams), ½ tsp sea salt, 2 egg yolks
Add Flour. Add flour and stir to combine. The dough is supposed to be sticky. If it's super sticky, stir in another 1 to 2 tablespoons of flour, but not more.
⅞ to 1 cup all purpose flour (108 - 120 grams)
Boil Water. Start boiling salted water in a large wide-bottomed pot or saucepan. Add one teaspoon of salt per 1 quart of water.
½ tsp sea salt
Make Pierogi. Spoon about ¼ of the dough onto a well-floured work surface, then roll it into a 1 to 1 1/2-inch-thick rope using floured hands. Add more flour to the work surface if the dough starts sticking. Then cut the rope into 1 to 2-inch pieces using a lightly floured knife, and transfer them onto a well-floured surface. Cover the cut pierogi and repeat with the remaining dough.
Cook. Once the water starts boiling, lower it to a gentle simmer. Carefully transfer ¼ to ½ of the dumplings into the simmering water using lightly floured hands, and stir them gently using a spoon so they don't stick to the bottom. Once all pierogi float to the surface, let them cook for another 1 to 2 minutes, then remove using a slotted spoon.
Serve Immediately.