Mushroom Filling

• 1 small onion, finely chopped
• 1 tablespoon unsalted butter or sunflower oil
• 2½

In a medium skillet over medium heat, sauté the onion in the butter until soft, about 5 minutes. Add the cooked mushrooms, dill, and parsley and cook together for 10 minutes. Taste and add salt and black pepper if needed. Remove the skillet from the stove and beat in the egg yolks. Chill thoroughly and then use to fill varenyky.