Prepare the Apple filling for strudel. Cut the apples into thin slices. Pour the raisins with boiling water and leave for 10 minutes Then drain the water and dry it. Next, melt some butter (70 g) in a medium-sized pan over medium-high heat (the rest of the butter we will use later). Add sugar to the butter and melt it. The melted mass is spread the apples, add the cinnamon. Simmer for 5-7 minutes without covering (we need to evaporate the liquid), stirring occasionally. Add there then raisins and nuts and simmer until the moisture evaporates about 3-5 minutes. Shift the finished filling into another bowl and allow to cool completely.