Coffee Cake with Apple Strudel Topping

My tip here is if you don't have sour cream, DON'T RUN TO THE STORE. If a recipe calls for sour cream, simply add some vinegar to some milk, and stir until it curdles. Then add it to the recipe, and you have just added sour cream. Here I used for a coffee cake I made, and added my apple strudel recipe on top.