For the dough: flour - 2 cups, butter - 150 g, grated Cheddar cheese - 1 cup, egg yolks - 2 pcs., cream - 6 tbsp. l., green onion - 2 tbsp. l. For filling: butter – 2 tbsp. l., vegetable oil - 1 tbsp. l., chicken breasts – 450 g, carrots – 2 pcs., celery stalk – 1 pc., shiitake mushrooms – 220 g, pickled pearl onions or seedlings – 280 g, frozen peas – 180 g. For the sauce: butter – 6 tbsp. l., flour - 1/4 cup, chicken broth - 1.5 cups, cream - 0.5 cups, thyme - 1 tsp, salt, ground pepper.