Combined cake

Grind the butter well with flour, mix the sugar, ground nut or almond kernels, egg yolks, rum, grated zest and lemon juice and knead the dough. Divide it into 3 parts, roll each into a cake and bake one at a time in a butter-greased, ground breadcrumbs-sprinkled cake tin in the oven at high temperature. Spread the ready-made chilled cakes alternately with cream and filling. Top with glaze. Sprinkle with ground nut.