Piped Cookies

Overview

This is not the first time this has been done. It was just that my mother wanted to learn how to do it on a whim, so she took pictures of the process

Have all materials ready
Soften the butter at room temperature, mix with the icing sugar, and stir.
The whipped butter will become lighter in color and slightly larger in volume.
Add egg mixture in portions and stir until completely absorbed.
Add milk gradually and stir until completely absorbed.
This is a creamy paste in which the egg liquid and milk have been completely absorbed.
Sift the flour, and then mix the flour and butter paste into a fine batter using the cutting and stirring method.
This is the mixed batter.
Put the batter into a piping bag and pipe out the desired pattern on the baking sheet. Try to make it as thin as possible, and try to make the sides the same thickness as the heart.
Preheat the oven to 160°C and bake for about 16 minutes. Be sure to bake it thoroughly.