1+1/4 cups of whole walnuts or almonds
1 cup of butter
2/3 cup of granulated sugar
2 spoonfuls of flour
1 spoonful of yeast
1 spoonful of cinnamon
1/4 spoonful of salt
1 spoonful of grated lemon rind
Pre-heat the oven at 190º.
Mix the butter and the sugar with a mixer, then add the eggs and mix until you o
btain a smooth mixture. Add the vanilla and mix.
In another bowl, mix the flour, the ground walnuts, the yeast, the cinnamon, the salt and the grated lemon rind.
Blend the two mixtures an
d beat well. Place the mixture in the freezer for 30 or 40 minutes.
Spread the mixture on a floured surface and smooth it out until you have a thickness of about 3 mm.
Cut out 36 cookies using the Linzer cookie cutter without the inside shape and another 36 with the inside shape. Bake on a tray with parchment paper until they are golden (approx. 8 minutes).
Leave them to cool, sprinkle them with icing sugar and sandwich them together by filling them with jam.