250 g of Mulino Marello buckwheat flour

90 g butter temp. environment

90 g granulated or icing sugar

1 tablespoon baking powder

3 whole medium eggs

1 tablespoon of olive oil

1 grated lemon zest

1 pinch of salt 

1 sachet of vanillin

Pour the butter, sugar and lemon zest into the planetary mixer (or work with a whisk), then gradually add the eggs, flour and other ingredients and work for a few minutes until the dough is smooth and soft.

Let the dough rest for 15 minutes (even outside the fridge).

Fill a piping bag and make the biscuits to your liking.