Take a dry and thoroughly defatted bowl. Separate the whites from the yolks, place the whites in a low-fat bowl and put them in the refrigerator.
Set aside half of the protein sugar. Grind the yolks white with the remaining half of the sugar.You can add grated lemon or orange zest, or ground nuts.
Mix the yolks with flour.Turn on the oven.
The whisk for whipping whites must be thoroughly degreased and dried. One drop of water or a vein – and the proteins won’t churn!Beat the whites, adding citric acid to them.
Add sugar (half set aside). Beat the egg whites with half the sugar until firm.
You can check the strength of the protein foam by gently tilting the bowl with the whipped egg whites – if the whites are beaten well, they will not pour out of the bowl.
Add whipped egg whites in portions.
Stirring movements from bottom to top.
Grease the mold with oil.Put the dough in a greased mold and place in the oven preheated to 150 ° C. Increase the temperature to 180-200 ° C. The first 15 minutes. baking biscuit should not be disturbed, open the oven, shake the baking sheet. Bake dry biscuit for 40-50 minutes.