Purple Sweet Potato Long Shortbread
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Ingredients: egg yolk: 1 egg white: 1 fine sugar: 25 grams, low-gluten flour: 20 grams, purple potato flour: 5 grams, decorative powdered sugar: appropriate amount, decorative purple potato flour: appropriate amount
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Production: 1. Beat the egg yolk for use
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2. Whip the egg whites and foam together with fine sugar until the egg beater is lifted and a small hook can be pulled out (wet foaming)
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3. Add the whipped egg yolk to the whipped egg white and stir evenly from top to bottom (do not stir in circles)
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4. Sift in low flour and purple sweet potato flour and stir evenly with a spatula
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5. Put the batter in a piping bag, squeeze it on a baking pan covered with greased paper, and squeeze out a strip with a length of 11cm
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6. 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.
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7. 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.
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Finished
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