HOW COULD I FORGET TO MAKE THE CAKE?

Good thing I had everything to make the cake! Here is the recipe: Cake Ingredients 2 sticks margarine 2 cups sugar 4 eggs 1 vanilla bean (seeds removed) 1/4 cup heavy cream 1 cup sour cream 3 cups flour 1 1/2 tsp baking powder 1/2 tsp baking soda Crumb Topping 1 cup brown sugar 1 cup white sugar 2 sticks butter, melted 1 1/2 tsp cinnamon 2 cups flour First make the topping. In a bowl, combine the melted butter, brown sugar, white sugar, and cinnamon. Once fully combined, add the flour and mix ju