1. Prepare the required materials, mix the cornstarch and the low flour evenly, cut the butter into pieces and soften it until it is pressed and left
2. Add vanilla seeds, salt and sugar to the butter to loosen
3. Add whipped cream and egg yolk in two portions and beat until the volume becomes large and feathery
4. Sift the powder into the whipped butter and mix well
5. Put in a piping bag to squeeze out cookie flowers
6. Put it in a preheated oven at 180 degrees, adjust the temperature to 170 degrees and bake for 20 minutes.
7. Can start
Tips:1. Egg yolk plus 100 grams of light cream, so the ingredients should be adjusted according to the size of the egg yolk.
2. The decorating mouth is free, I use eight teeth,
3. The temperature should be adjusted according to your own oven, the new oven temperature is too high and the color is still a bit dark
4. No vanilla seeds can be added
