Mix the butter, sugar and eggs together well
Mix the flour with the baking powder and add to the egg mixture
Add the baking oil, lemon and a little salt and mix everything together to form a smooth batter. Then fold in the chocolate shavings
Peel, core and quarter the apples
Cut the upper curved side with a sharp knife, but do not cut through
Put the cake batter into a springform pan that has been greased and sprinkled with breadcrumbs
Spread the apple quarters on the cake batter
Preheat the oven to 175 ° C and bake the cake for about 45 minutes. Pay attention to the browning and do a cooking test
After cooling, sprinkle with powdered sugar