Ready in roughly an hour with one bowl and a standard 9-inch pan, this recipe is designed for maximum convenience without specialty tools. The cake freezes and reheats well, so you can bake ahead, slice, and stash portions for effortless breakfasts all week.
All-purpose flour 2 cups
Preheat the oven to 350 °F
For clean, distinct swirls, spoon half the batter into the pan, dust the cinnamon filling evenly, then drag a butter knife through just once or twice—over-mixing muddies the pattern. If you like texture, fold ½ cup toasted pecans into the streusel before baking. Let the cake cool 15 minutes in the pan; slicing too hot causes the crumb to crumble.