Beat the eggs with the sugar until frothy. Add the melted butter, baking powder and lemon flavor. As soon as everything is mixed in, mix in the flour spoon by spoon. Put the dough in a greased baking pan (I usually use a loaf pan).
Heat the oven to 165 ° C and, as soon as the temperature is reached, bake the cake for 45 minutes on the middle rack.
I have already tried various variants: It is particularly popular with friends when lemon peel and / or orange peel is mixed in. To prevent the fruits from sinking to the bottom, simply take a little of the flour and shake with the fruits in a freezer bag. The cake is also very tasty with nuts or chocolate chips. For the children`s birthday party, the cake can also simply be colored with food coloring.