Cinnamon Coffee Cake with Streusel Crumb Topping

This cinnamon coffee cake recipe is moist, buttery, and full of cinnamon flavor. This is the best recipe for cinnamon crumb cake out there! While I am generally happy to share every recipe that I post, there are some that I am REALLY excited to share- and this is one of them. I'm not a huge breakfast eater, but one thing that I can never resist is coffee cake. This is also why I rarely ever buy or make it- I can't stay out of it. I love the general idea behind coffee cake. Someone cle...