Preheat the oven to 375 degrees Fahrenheit, and heat the skillet till it's heated through. Wash, peel, and core the apples.

Mix the walnuts, brown sugar, butter and flour.

Roll the muerbeteig crust out and put into a heated and sprayed with nonstick cast iron skillet.

Coat the apple slices with the rest of sugar cinnamon mixture. Add the raisins.

Mix the crumble mixture with the butter. Then add to the top of the apples.

Put into oven for 25-30 minutes.

Let cool and serve I hope you enjoy!