Beat in a bowl 125 g of sugar with some butter until obtaining a mousse. Add the eggs, the juice, the grated
lemon rind, the flour and the baking powder and whisk continuously. Grease a rectangular mould with butter and add the pastry. Scatter the
almonds over it, and dust with sugar and cinnamon powder. Bake in the oven at high temperature 15 to 20 minutes.