This apple cinnamon coffee cake is perfect for breakfast or brunch. It's a moist and tender cake with a crunchy streusel topping. To make this cake, you'll need all-purpose flour, baking powder, salt, sugar, eggs, vegetable oil, vanilla extract, apples, cinnamon, and brown sugar. Mix the dry ingredients in one bowl and the wet ingredients in another. Combine the two mixtures and fold in the chopped apples. Pour the batter into a greased baking pan and sprinkle the streusel topping on top. To make the streusel, mix flour, brown sugar, cinnamon, and butter until crumbly. Bake the cake for 35-40 minutes or until a toothpick inserted in the center comes out clean. Serve warm with a cup of coffee or tea.
