Cinnamon Streusel Loaf
This is the kind of loaf cake you make “just to have something around” and then immediately start guarding once everyone realizes how good it is.
It’s soft and light, but still rich enough to feel like a treat. There’s a cinnamon sugar ribbon running through the middle, a buttery streusel on top, and a simple vanilla icing that pulls everything together without making it overly sweet. It works just as well for an afternoon snack as it does for breakfast the next morning with a cup of coffee. Or tea, if that’s your thing.
And yes, somehow it’s even better the next day. I don’t make the rules.
Before you start, a quick heads up: this recipe uses five bowls. I know that sounds aggressive for a loaf cake. One for the streusel, one for the cinnamon sugar, one for dry ingredients, one for wet, and one for the icing. But every step matters here, and I promise you won’t be annoyed once you’re slicing into it.
Let’s talk about the good parts.
The streusel is simple and worth it. Flour, brown sugar, cinnamon, and melted butter mixed into a thick, crumbly paste. It doesn’t look impressive at first, but once it bakes, it turns golden and crunchy and becomes everyone’s favorite part. This is the topping people pick at before the loaf is fully cut.
The cinnamon sugar ribbon is exactly what it sounds like. Brown sugar and cinnamon mixed together and layered into the center of the batter. It gives you that bakery-style swirl without any actual swirling or extra effort. Highly efficient, very satisfying.
The batter itself is unfussy. Oil keeps the loaf soft for days, and buttermilk adds just enough richness and tang. The most important thing here is to not overmix. When you fold the dry ingredients into the wet, stop as soon as it comes together. Lumpy is good. Smooth is suspicious.
When it’s time to assemble, half the batter goes into the pan, followed by an even layer of the cinnamon sugar mixture. Then the rest of the batter goes on top. Smooth it out gently, crumble the streusel over everything, and call it a day.
Into the oven it goes.
While it bakes, your kitchen will smell like cinnamon and butter, which is never a bad thing. Bake until a toothpick or knife comes out mostly clean, then let it cool. I know it’s tempting to cut into it immediately, but give it at least 30 minutes. This loaf needs a minute to get itself together.
Once it’s cool, drizzle the icing over the top. You want it thick but pourable. If it looks messy, you did it right.
You can absolutely eat this the day you make it, and it’s great. But if you happen to have leftovers, save a slice for the next morning. The texture settles, the flavors deepen, and somehow it just works better. It’s one of those baked goods that quietly improves overnight.
This isn’t a showy dessert. It’s a reliable, repeat-worthy bake. The kind you make once, then find yourself thinking about again a week later.
Five bowls. One loaf. Zero regrets.
If you bake it, let me know. And if you eat it for breakfast, I fully support that choice.
Ingredients
Streusel Topping
- 1/3 cup all-purpose flour
- 1/4 cup brown sugar, packed
- 1 teaspoon ground cinnamon
- 3 1/2 tablespoons unsalted butter, melted
Cinnamon Sugar Ribbon
- 1/4 cup brown sugar, packed
- 2 teaspoons ground cinnamon
Loaf Cake
- 2 1/2 cups all-purpose flour
- 1 1/2 teaspoons baking powder
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 2/3 cup light-tasting oil
- 3/4 cup granulated sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 1 cup plus 2 tablespoons buttermilk
Icing
- 1/3 cup powdered sugar
- 1 1/4 teaspoons milk, dairy or non-dairy
- 1 teaspoon vanilla extract
Instructions
Streusel Topping
Mix: In a medium bowl, stir together the flour, brown sugar, and cinnamon. Pour in the melted butter and stir until a thick, crumbly paste forms. Set aside to cool and harden.
Cinnamon Sugar Ribbon
Stir: In a small bowl, stir together the brown sugar and cinnamon. Set aside while you prepare the cake batter.
Loaf Cake
Prep: Preheat the oven to 350°F. Line a loaf pan with parchment paper and set aside.
Mix dry ingredients: In a medium bowl, stir together the flour, baking powder, baking soda, and salt. Set aside.
Mix wet ingredients: In a large bowl, whisk together the oil and granulated sugar until combined. Add the eggs and vanilla extract and whisk until smooth. Pour in the buttermilk and whisk until fully combined.
Combine: Using a fine mesh sieve, sift the dry ingredients into the wet ingredients. Gently fold with a spatula until just combined. The batter should be slightly lumpy. Do not overmix.
Assemble: Pour half of the batter into the prepared loaf pan. Sprinkle the cinnamon sugar mixture evenly over the batter. Top with the remaining batter and gently smooth it into the corners if needed.
Add streusel: Crumble the streusel topping into pieces of varying sizes and sprinkle evenly over the top of the batter.
Bake: Bake for about 45 minutes, or until a toothpick inserted into the center comes out mostly clean. Let the cake cool in the pan for 30 to 45 minutes, then lift it out and transfer to a wire rack to cool completely.
Icing
Stir: In a small bowl, stir together the powdered sugar, milk, and vanilla extract until thick but pourable. Add more powdered sugar if it is too thin, or a small splash of milk if it is too thick.
Drizzle: Spoon the icing over the cooled loaf before slicing and serving.
If you make this, share a pic!
Kelsey
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