How to Make This Cinnamon Swirl Pancake Mix Sheet-Pan Bake Step-by-Step

Start by heating your oven to four hundred twenty-five degrees Fahrenheit. Brush a sheet pan with neutral oil, bottom and sides, then slide it right into the oven. Let it get hot. This is where the magic happens—the instant the batter hits that heat, you get lift, color, and those crisp edges that make this bake stand out.

Stir the pancake mix and sugar together in a large bowl. In a separate bowl, whisk the eggs, buttermilk, melted butter, and vanilla. Pour the wet mixture into the dry and fold gently until everything just comes together. A few lumps? Perfect. Batter should be thick enough to hold shape but pourable enough to move across the pan.

Mix the melted butter, brown sugar, and cinnamon in a small bowl for the swirl. The smell alone tells you you’re on the right track.

Pull the hot sheet pan from the oven. Pour the batter in and spread it quickly. Dollop the cinnamon mixture all over the top, then swirl it through the batter with a butter knife. Loose loops, big curves—don’t overthink it. Trust me, this flavor hits different when the swirl melts into the bake.

Bake for fifteen to twenty minutes until the edges are golden and the center looks puffed and set. While it bakes, whisk together the powdered sugar, melted butter, and milk for the icing. Cut the bake into squares and drizzle the icing over the warm surface.