This super moist Cinnamon Roll Swirl Coffee Cake is worth making from scratch! Rich, moist coffee cake is swirled with a cinnamon roll filling and topped off with a simple glaze. This cake is to die for!
Preheat oven to 350 degrees. Lightly grease a 9x13 pan.
In a large mixing bowl, cream together butter and sugar using a hand mixer until creamy. Then mix in eggs, sour cream, and vanilla extract until combined. Beat in 3 cups flour, baking powder, and salt until just combined. Pour into prepared pan.
Make the topping in another mixing bowl by whisking together melted butter, brown sugar, 2 tablespoons flour, and cinnamon. Spoon in globs over the top of the cake batter. Then use a butter knife to swirl it into the batter.
Bake in the preheated oven for 35-40 minutes, until a toothpick inserted into the center comes out clean.
Meanwhile, make the glaze by whisking together powdered sugar, milk, and vanilla in another bowl. Drizzle over the cake while it is still warm.