Expansion: the batter is a little hard, so you can add less warm water and butter to make the biscuits no longer hard.
How to make cookies:
1, the production of vanilla dough: the butter is softened (it can be properly heated in the microwave oven in winter), and the fine sugar is added and stirred evenly.
2. Add the egg yolk and mix well.
3. Drop vanilla extract and stir well.
4. Sift in the low powder and stir.
5. Add water, knead into dough, and let stand for 15 minutes.
6. Roll to the required thickness, 0.5cm thick here, and cut into rectangles.
7. Chocolate dough is made the same as vanilla dough. Chocolate dough is also rolled into the same thickness as vanilla dough, cut into the same size, and coated with a layer of whole egg liquid as adhesive.
8. Vanilla dough is placed on chocolate dough.
9. Cut into strips with the width of 1cm and stagger them. Also use whole egg liquid as adhesive.
10. Roll the remaining vanilla dough into thin slices.
1 1. Brush the surface with whole egg liquid, wrap the folded checkerboard dough, and cut off the vanilla dough.