1. After softening the butter at room temperature, add sugar and powdered sugar and mix well
2. Beat with an electric whisk until it is fluffy, then add the egg liquid
3. Beat with an electric whisk to leave the egg and butter completely fused and become a leaved state
4. Add sifted low-gluten flour and custard powder, stir with a spatula to mix the flour and butter
5. Then knead the dough by hand
6. Sprinkle some flour on the chopping board and roll the kneaded dough into thin slices
7. Use a hollow circle mold to stamp out a circle, and then use a small hollow circle mold to print a circle inside the circle and place it on a baking pan that has been filled with grease paper.
8. Use bamboo sticks or chopsticks to make 4 holes
9. Put it in the preheated oven and bake at 150°C up and down, and bake for 20 minutes
Tips:1. It is best to ensure that every big and small sister is this year, and leave a certain distance between each one, so that the temperature or firepower can be controlled when baking;
2. The leftover biscuits should be sealed and stored to avoid resurgence;
3. The butter must be stirred and sent in place, and it is good to beat it until it has loose hair, white color, and slightly expanded feather shape, otherwise the taste of the biscuits is very hard and not loose.
