6 eggs (6 egg yolks and 3 egg whites)
1tbs baking powder
125g candied ginger
125g chocolate chips
pinch of salt
Preheat oven to 400F.
In a bowl beat the eggs with the sugar and a pinch of salt, trying to get a frothy mixture.
Add the butter, flour, lemon zest and baking powder.
Add the ginger and chocolate chips to the mixture.
Divide the dough into three parts and form loaves of about 3 cm thick, brush them with the egg whites and bake for 20 minutes.
Take the loaves out of the oven and cut them into 1 cm slices. Cook the biscuits for ten more minutes. Enjoy!