For the broth, I took 2 pieces of frozen porcini mushrooms. Chop them and boil them in salted water for 10 minutes. You can take any mushrooms: forest mushrooms, oyster mushrooms, mushrooms-honey mushrooms. Pour odorless sunflower oil into a saucepan, put flour and rub everything with a silicone spatula until a homogeneous mass is obtained. Put on fire, bring to a boil.