Cream 250 g butter and sugar with the whisk of the hand mixer. Add the eggs bit by bit. Stir in lemon zest, 2 teaspoons honey and juice of 1 lemon. Fold in flour
Pour the dough into a greased square tin (23 x 30 cm) lined with baking paper and bake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for 25-30 minutes
Mix the juice of 1 lemon with 2 tsp. honey. Prick the still warm cake several times with a wooden stick and sprinkle with the lemon juice and honey mixture. Let the cake cool down on a cake rack
Whip 200 g butter with the whisk of the hand mixer until creamy white. Sift icing sugar, add by the spoonful and continue beating. Carefully stir in the remaining lemon juice bit by bit. Spread the icing on the cooled cake with a dough scraper
Waiting time approx. 30 minutes