Make the sweet noodle sauce first, or you can use the old Beijing sweet noodle sauce you bought directly. Add half a spoonful of medium-gluten flour to the pot when the oil is medium-cooked.

stir-fry until the flour turns yellow, add water and light soy sauce, continue to stir and stir, and the sauce is formed.

at this time, you can add white sugar and taste it while adding it.

finally, the sweet noodle sauce is finished. :

Sweet noodle sauce, also known as sweet sauce, is a kind of sauce-like condiment made of flour as the main raw material through koji-making and heat-preservation fermentation. Its taste is sweet and salty, and it has both sauce flavor and ester flavor. It is suitable for cooking sauce-fried and sauce-fried dishes, such as "diced meat with sauce", and can also be dipped in green onions, cucumbers, roast ducks and other dishes. You can also make cakes to eat.