LemonBar is a very common dessert in the United States.
The mold is covered with tin foil, leaving a margin on both sides for demolding
Mix butter, sugar, vanilla flavor, salt
Add powder, knead into a mass, do not over-extract, press into the bottom of the mold, flatten
Put in a preheated to 175C oven and bake for 25 to 30 minutes to golden
Mix sugar and medium powder, add egg, and mix well
Add lemon dander and lemon juice and mix well
After the bottom of the cake is baked, it is poured into the filling.
Cool down to 150C, bake until the filling is almost solidified
Demoulding and dicing after completely cooling