1. Soften the butter, mix the egg yolk, powdered sugar and low-gluten flour into a dough, take out one-fifth of the original dough, and add purple sweet potato flour to the rest to make a dough
2. Pinch into the shape as shown
3. Use a scraper or knife to cut a mark in the middle of the petals
4. Made a total of 12
5. Preheat the oven at 150 degrees
6. Fire up and down at 150 degrees, 15 to 18 minutes (time can also be adjusted according to personal oven temperature)
7. The final color of baking will become lighter
Tips:Pay attention to the temperature and the actual temperature. Different ovens have different temperatures. Please adjust the time and temperature according to your own oven. You can also change the purple sweet potato powder to other colored powder, according to personal preference
