1. 1. After the butter is melted by heating with water or in a microwave oven, add powdered sugar in portions to dissolve it;
2. 2. After the powdered sugar is dissolved, add milk and stir well with a whisk;
3. 3. Add egg whites and mix well;
4. 4. Continue to add coffee powder to mix, and use a manual whisk to stir evenly in irregular directions;
5. 5. Sift in low-gluten flour;
6. 6. Continue to stir with a manual whisk in irregular directions to form a uniform batter;
7. 7. Add all the nuts to the batter and mix well with a rubber spatula;
8. 8. Spread a non-stick cloth on the baking tray, scoop an appropriate amount of batter on the baking tray with a spoon, and use the back of the spoon to thin the batter (a thinner taste will be more crisp), preheat the oven to 180 degrees, and bake on the top and bottom for about 15 minutes.
9. Since it is rich in nuts, it is very fragrant and aftertaste~
10. Because coffee powder is added, it will feel very burnt if you accidentally roast it, so always pay attention to the changes in the oven~
11. Very thin, crispy and fragrant~
12. Bribe your stomach
