For the almond slices, first prepare the shortcrust pastry: Crumble flour with butter and knead with sugar, egg and lemon zest. Wrap the dough in plastic wrap and let it rest in the refrigerator for 1 hour.
Roll out the dough onto baking paper dusted with flour to a thickness of about 1/2 cm and bake at 170 °C for 10 minutes.
In the meantime, prepare the topping: To do this, cream butter with sugar, gradually beat in eggs. Finally, mix in the almonds.
Spread the dough first with jam and then with the almond mixture and bake for 12 – 15 minutes. Cut rectangular cookies and dip half in melted chocolate.