Beat the egg with a pinch of salt. Add the sifted flour, pour in the water. Knead the dough and knead it with your hands on a cutting board. Leave the dough at room temperature for 15 minutes.
At this time, prepare the filling: wash the berries, remove the roots and grind them with sugar. Add ricotta or regular cottage cheese.
Roll out the dough approximately 0.3 cm thick. Cut out doughs with a diameter of about 8 cm. In the center of each circle, lay out a small spoonful of the filling, blind the dumpling, fix the edges, moistening them slightly with water.
Bring a large pot of water to a boil and boil the dumplings for 5 minutes. For the sauce, mix and whisk all the ingredients.
Serve warm dumplings with sauce and fresh berries.