My First Baking Lesson 我的第一次烘焙课

Recipe: HOW TO MAKE BUTTER COOKIES?
You will need: 1 cup of butter, 1 cup of sugar, 3 cups of flour, 1 egg.
Combine the butter and sugar. Mix until crumbly.
Add the egg in the mixture. Mix until creamy.
Roll out the cookie dough.
Cut out the cookie dough.
Put the cookies into the oven.
Bake at 350 degrees F for 15 minutes.
Cool and serve.