Pumpkin tends to get all of the love at this time of year, but apples deserve their own time in the spotlight if you ask me. There are so many varieties of apples out there, but one of my favorite to bake with happen to be granny smith apples. I love the slight tartness that they bring to a recipe and they are perfect for muffins as well. There is nothing that smells much better than fresh muffins baking in the oven, and these definitely do not disappoint. This recipe for apple cinnamon streusel muffins is sure to become one of your favorite fall muffin recipes.