01 -
Preheat oven to 350°F. Grease and flour a 9x13 inch baking pan. This initial step ensures your Easy Cinnamon Roll Cake with Vanilla Icing bakes evenly and doesn't stick.
02 -
In a large bowl, whisk together 2 cups all-purpose flour, 3/4 cup granulated sugar, 2 tsp baking powder, and 1/2 tsp salt. Set aside.
03 -
In a separate medium bowl, combine 1/2 cup melted unsalted butter, 1 cup whole milk, 1 large egg, and 1 tsp vanilla extract. Whisk until well combined.
04 -
Pour the wet ingredients into the dry ingredients. Stir gently with a spatula until just combined and no dry streaks remain. Do not overmix for a tender Easy Cinnamon Roll Cake with Vanilla Icing.
05 -
In a small bowl, mix 1/2 cup packed light brown sugar, 1 tbsp ground cinnamon, and 1/4 cup melted unsalted butter until a thick, uniform paste forms.
06 -
Pour half of the cake batter into the prepared pan. Dollop spoonfuls of the cinnamon mixture over the batter. Top with the remaining cake batter, then dollop more cinnamon mixture. Swirl gently with a knife.
07 -
Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean. Let the cake cool in the pan on a wire rack before icing.
08 -
While the cake cools, whisk together 2 cups powdered sugar, 1/4 cup softened unsalted butter, 2 tbsp whole milk, 1 tsp vanilla extract, and a pinch of salt until smooth. Pour over the cooled Easy Cinnamon Roll Cake with Vanilla Icing.