Cinnamon Roll Coffee Cake

Preheat your oven to 350°F. Grease a 9x13-inch baking dish or line it with parchment paper.

In a large mixing bowl, cream the softened butter and granulated sugar until light and fluffy. Add the eggs, one at a time, beating well after each addition. Stir in the vanilla extract.

In a separate bowl, combine the flour, baking powder, and salt.

Gradually add the dry ingredients to the butter mixture, alternating with the milk, beginning and ending with the dry ingredients. Mix until just combined. Pour the batter into the prepared baking dish and spread evenly.

In a medium bowl, combine the melted butter, brown sugar, flour, and cinnamon. Stir until smooth. Using a spoon, dollop the cinnamon mixture over the cake batter. Use a knife or skewer to swirl the cinnamon mixture through the batter, creating a marbled effect.

Bake in the preheated oven for 30–35 minutes or until a toothpick inserted into the center comes out clean. Allow the cake to cool slightly in the pan.

In a small bowl, whisk together the powdered sugar, milk (start with 2 tablespoons and add more as needed for your desired consistency), and vanilla extract until smooth.

Drizzle the glaze over the warm cake, spreading it evenly if desired. Let the cake cool slightly to set the glaze before slicing.