Purple Sweet Potato Long Shortbread
1.
material:
Egg yolk: 1, egg white: 1, fine sugar: 25 grams, low-gluten flour: 20 grams, purple potato powder: 5 grams, decorative powdered sugar: appropriate amount, decorative purple potato flour: appropriate amount
2.
Production:
Beat the egg yolk for use
3.
Whip the egg whites into foaming and add fine sugar together until the egg beater is lifted and a small hook can be pulled out (wet foaming)
4.
Add the whipped egg yolk to the whipped egg white and stir evenly from top to bottom (do not stir in circles)
5.
Sift in low flour and purple sweet potato flour and stir evenly with a spatula
6.
Put the batter in a piping bag, squeeze it on a baking sheet lined with greased paper, and squeeze out a 11cm long strip
7.
Squeeze a layer of powdered sugar on the surface, put the oven on the upper and lower fire at 180 degrees and bake for 8 minutes until the surface of the shortbread is golden brown, then lower the temperature and continue to bake for 15 minutes at 120 degrees.
8.
After the baked shortbread is cooled, use a mesh sieve to sieve a layer of powdered sugar on the surface, and then sieve a layer of purple potato powder as a decoration.