Marillenfleck is a traditional apricot cake originating from Austria, where it's a coffeehouse staple. Although there are slight variations, the cake is usually made with a combination of apricots, butter, sugar, eggs, flour, baking powder, lemon juice and zest, salt, and vanilla extract.
The butter is beaten and mixed with sugar, eggs, vanilla, flour, baking powder, salt, and lemon juice and zest in order to make the batter. It is spread evenly in a buttered baking pan, and the apricots are arranged on top of the batter. The apricots are usually cut into quarters or halves for a uniform appearance.