Ingredients
Equipment
Method
Bake the sheet cake
- Preheat the oven to 350°F and grease a 9x13 baking dish.
- Whisk together all-purpose flour, granulated sugar, baking powder, and salt.
- Stir in whole milk, eggs, vanilla extract, and melted butter until just combined, then spread the batter into the prepared dish.
- Beat softened butter, brown sugar, and cinnamon until fluffy, then drop spoonfuls over the batter.
- Use a knife to swirl the cinnamon mixture into the batter so you see marbled brown-sugar ribbons on top.
- Bake for 30-35 minutes, until a toothpick comes out clean and the top is golden.
Glaze and serve
- While the cake is still warm, beat cream cheese, powdered sugar, milk, and vanilla extract until smooth.
- Pour the glaze over the warm cake, letting it pool into the swirls and crevices as a glossy layer forms.
- Let the glaze soak in for 5 minutes before serving warm, with the surface set but still tender underneath.
Notes
Pro tip: swirl with a light hand—stop once you get dark ribbons throughout so the cake bakes up with distinct cinnamon pockets. Store covered in the refrigerator up to 4 days; rewarm individual slices 10-20 seconds in the microwave. Freezing is yes (glaze may soften after thawing). For a lighter option, swap whole milk for 2% milk without changing the method.
