Sweet potato sliced
Cover, put in a microwave oven, heat until cooked
Sift through a sieve
Sifted sweet potato puree. The sweet potato mud after sieving will taste better. If you like rough taste, you don't have to use a sieve. In addition, the sieve eye should be slightly larger and easier to pass.
Low-gluten flour sifting
Sifted well, if it is not sieved, the flour will be easy to agglomerate, and there may be small particles in operation.
The butter is cut into pieces and softened at room temperature. Because the room temperature is very low at home now. Some homes only have a few degrees, and this temperature is not successful in softening butter. So it is best to use a microwave oven or electric blanket, or air conditioning at home. I think the microwave is the most troublesome, but the premise is that you don't get rid of the butter, look at it for five seconds, use the defrosting function.
Then add the powdered sugar and use the egg beater to send it.
Put in an egg yolk (protein can be used to make protein shortbread, there are practices below the post)
Send a good look
Add the sieved sweet potato puree and mix evenly
After mixing, it will be very smooth
Pour the sieved flour
And into the dough, don't be like bread, it is easy to get ribs. Press down to form a group
Put it in a fresh-keeping bag and press it into a 0.4 cm piece with a rolling pin.
After pressing, use a ruler to form a rectangle, then put it in the refrigerator for 30 minutes, so that the piece is relaxed for a while.
After taking it out, tear off the storage bag and use the mold to push out the shape of the biscuit.
Put some small eyes on the fork
All cookies are placed flat on the baking sheet, leaving some distance around
The oven is preheated at 175 degrees, the middle layer. 20 minutes or so
1. Butter is very difficult to soften in winter. Heating and air conditioning at home is very easy. So depending on the temperature at your room temperature, you decide which way to soften. 2. The dough of the biscuit is not recommended, and the way of pressing is better. The dough that is pulled out will taste too hard. 3. Some friends said that I don't want to use butter. The taste of butter and plants is completely different. Cookies with butter are generally crispy. Vegetable oil biscuits are more brittle and hard. So before you think about which biscuit to make, think about the taste of the cookies you want to make. Not replacing each other.