01 -
Set your oven to 180°C and let it heat up.
02 -
Whisk together the eggs, sugar, and vanilla sugar until it looks a little pale.
03 -
Gently fold in the yogurt, followed by the flour mixed with baking powder.
04 -
Stir in the melted butter, the rum, and a pinch of salt.
05 -
Slice the apples thinly and mix them into the batter.
06 -
Pour the mixture into a greased and floured baking pan.
07 -
Bake for about 35 to 40 minutes, until it's golden and crunchy on top.
08 -
Let it cool a bit before you take it out of the pan.