Ingredients: 

100 g of butter

90 g of sugar 

300 g of flour 

1 tsp of baking powder

1 egg 

Lemon juice and zest 

Powdered sugar 

Granulated sugar

Directions: 

1. Whisk butter and diced butter. 

2. Add lemon juice and zest. 

3. Then stir in salt, baking powder and flour a little bit at a time. 

4. Knead, shape the cookies and coat them with granulated sugar and powdered sugar. 

5. Bake at 180° for 20 minutes.