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Preheat oven to 180 ° C

In a bowl, sift the flour, cornstarch, baking powder and baking soda.

In the bowl of a mixer, beat the butter, lemon zest and sugar until the mixture is creamy. Add the eggs and beat again before and after add the dry ingredients. The dough as little as possible, so that the cookies are very rivers.

Once the dough forms a ball, it is ready to be distributed on a floured surface (5 mm thick). Cut cookies with cookie cutter sixty 4 cm in diameter. Place them on a baking sheet and bake for 8 minutes in a convection oven (a few minutes if it is not).
Cool cookies on a wire rack then form the alfajores.

Place a small teaspoon "milk jam" on half of the cookies and cover with a second sandblasted. Sprinkle generously with powdered sugar.

Ingredients:

• 100 g flour
• 150 grams of corn starch
• 4.1 teaspoons of baking
• 1 teaspoon of baking powder
• 100 g butter
• 75 grams of sugar
• 1 egg + 2 egg yolks
• grated rind of one lemon
• Engorgement
• Decorate icing sugar

Total time: Preparation + cooking time: 25 minutes
Yield: 8 people