This homemade Cinnamon Roll Cake is a tender vanilla cake swirled with a brown sugar cinnamon roll filling. It has a cinnamon icing on top, making it a truly decadent breakfast cake or dessert.
Preheat oven to 375 degrees and grease a 9” springform pan (and line the bottom with parchment paper, if desired).
In a bowl, mix flour, sugar, baking powder and salt together. Set aside.
In a separate bowl, whisk oil, eggs, and milk together.
Make a well in the center of the dry ingredients, and pour in the wet ingredients mixture. Stir gently until all ingredients are combined.
Add in the sour cream and vanilla extract, and mix until just combined. Set aside.
In a bowl, mix melted butter, flour, sugar, cinnamon, and brown sugar together (it will be a bit like a paste). Set aside.
Pour half of the cake batter into your pan. Sprinkle half of the cinnamon sugar filling over the cake batter.
Pour remaining batter over the top. Sprinkle the remaining cinnamon sugar filling on top of the cake.
Bake for 22-24 minutes, or until a cake tester comes out clean. Allow to cool 10 minutes.
Whisk powdered sugar, cinnamon and milk together. Pour over the cake and allow to set.
Serve warm, cold, or at room temperature!
Enjoy!