This coffee cake recipe builds a tender sour cream crumb with a cinnamon ribbon through the middle and a streusel lid that stays crisp instead of melting into the batter. The cake is sweet enough for dessert but light enough for breakfast, and it holds up for a day or two on the counter.
I serve it next to an overnight French toast casserole when we have people over for brunch, because both can be baked ahead and kept at room temperature until everyone sits down. The cake also slices cleanly once it is completely cool, which matters if you are packing it for a potluck.
Ingredients
For the streusel:
- 1 cup (120 g) all-purpose flour
- ½ cup (100 g) granulated sugar
- ½ cup (100 g) packed light brown sugar
- 1 teaspoon ground cinnamon
- ¼ teaspoon kosher salt
- 6 tablespoons (85 g) unsalted butter, melted
For the filling:
- ½ cup (100 g) packed light brown sugar
- 1½ tablespoons ground cinnamon
- 1 teaspoon unsweetened cocoa powder (optional, for color)
For the cake:
- 2¼ cups (270 g) all-purpose flour
- 1½ teaspoons baking powder
- ½ teaspoon baking soda
- ¾ teaspoon kosher salt
- ¾ cup (170 g) unsalted butter, softened
- 1¼ cups (250 g) granulated sugar
- 3 large eggs, room temperature
- 1½ teaspoons vanilla extract
- 1 cup (240 g) full-fat sour cream, room temperature
- 2 tablespoons whole milk, room temperature
Instructions
- Heat the oven and line the pan: Heat the oven to 350°F. Grease a 9×13-inch baking pan and line it with parchment, leaving an overhang on the long sides. The overhang lets you lift the cooled cake out in one piece instead of digging it out with a spatula.
- Make the streusel: Stir the flour, granulated sugar, brown sugar, cinnamon, and salt in a medium bowl. Pour in the melted butter and toss with a fork until the mixture forms damp clumps, then refrigerate it while you mix the cake. Cold streusel holds its shape on top of the batter instead of melting into it.
- Mix the cinnamon filling: Combine the brown sugar, cinnamon, and cocoa powder in a small bowl and press out any lumps with the back of a spoon. The cocoa is optional, but it keeps the ribbon dark enough to see against the pale crumb.
- Cream the butter and sugar: Beat the softened butter and granulated sugar on medium speed for 3 to 4 minutes, until pale and fluffy. Add the eggs one at a time, beating well after each, then mix in the vanilla. Scrape the bowl so no butter stays stuck to the bottom.
- Alternate flour and sour cream: Whisk the flour, baking powder, baking soda, and salt in a separate bowl. Add a third of it to the butter mixture on low speed, then half the sour cream and milk, then another third of the flour, the rest of the sour cream, and the last of the flour. Stop mixing as soon as the last dry streaks disappear, because extra mixing makes the crumb tough.
- Layer batter, filling, and streusel: Spread half the batter in the pan with an offset spatula. Sprinkle the filling evenly over the batter but leave a ½-inch border so it does not touch the pan. Drop the remaining batter over the filling in small spoonfuls, spread it gently, then scatter the cold streusel over the top in an even layer.
- Bake and cool: Bake for 40 to 45 minutes, until the top is deep golden and a toothpick in the center comes out with a few moist crumbs, not wet batter. Rotate the pan halfway through if your oven browns one side faster. Cool in the pan for 30 minutes, then lift the cake out by the parchment and cool completely before slicing.
What I tried and skipped
The first version of this cake had the cinnamon sugar swirled through the batter with a knife. It looked marbled in the pan, but the ribbon smeared into the crumb and the top lost its separate layer. Now I spread half the batter, add the filling in an even sheet, and drop the rest of the batter over it in spoonfuls so the band stays intact. I also chill the streusel before it goes on, because soft streusel melts into the batter and bakes into a flat sugar crust instead of a crunchy lid.
What to serve with coffee cake
- For a brunch table, pair it with an overnight French toast casserole; both hold well at room temperature, so you can bake the casserole first and keep the cake covered until everyone sits.
- A plate of sausage balls adds something savory next to all the sugar, and they reheat well if you make them earlier in the morning.
- Hash brown casserole turns the cake into a full holiday breakfast, and both dishes can share an oven set at 350°F.
- Pumpkin muffins work for anyone who wants a smaller portion, and the spice in both recipes comes from the same warm cinnamon note.
- Strong coffee or a pot of tea is the classic pairing, and the cake needs nothing else on the plate if you keep the slices small.
- For a holiday breakfast, add from-scratch biscuits and gravy; the savory gravy balances the sweet cake, and both can be kept warm until the table is ready.
Storage
Keep the cooled cake in an airtight container at room temperature for up to 2 days, or in the refrigerator for up to 5 days. For longer storage, wrap individual slices tightly and freeze for up to 2 months, then thaw at room temperature for about 2 hours. A short reheat at 300°F for 10 minutes brings the streusel back to life.
FAQ
Why did my streusel sink into the cake?
Warm streusel and a thin batter are the usual causes. Chill the streusel until the butter firms up, keep the clumps around the size of a pea, and do not stir it into the batter. If the batter looks runny, check that you did not add extra milk and that the sour cream was full-fat.
Can I make coffee cake ahead of time?
Yes, bake it up to one day ahead and cool it completely before wrapping it tightly at room temperature. The streusel softens a little overnight, so a 10-minute reheat at 300°F before serving brings back the crunch. Cover the whole cake loosely with foil during that reheat so the edges do not dry out. Do not refrigerate it unless your kitchen is very warm, because cold air dries out the crumb.
Can I use Greek yogurt instead of sour cream?
Yes, use full-fat Greek yogurt in the same amount as the sour cream. Non-fat yogurt has too little fat and makes the cake dry and tight, so keep the full-fat version if you can. Let the yogurt sit at room temperature with the eggs and butter so the batter does not curdle. The tang will be slightly stronger, which works well with the cinnamon.
Can I freeze coffee cake?
Yes, freeze cooled slices wrapped tightly in plastic and then foil for up to 2 months. Thaw them at room temperature for about 2 hours, or warm a single slice in the microwave for 20 seconds. Freeze the cake without the glaze, because a glaze turns wet and sticky after thawing.
Can I bake this in an 8×8 pan?
This batter is sized for a 9×13-inch pan, so for an 8×8 pan make half the recipe and start checking at 30 to 35 minutes. Pouring the full batch into a smaller pan gives you a raw center and a cake that climbs over the rim. The streusel and filling can be halved in the same way. Test the center with a toothpick rather than trusting the timer, because the smaller pan bakes faster.
What is the difference between coffee cake and crumb cake?
Crumb cake usually has a much thicker streusel layer that covers most of the top, while coffee cake has a lighter crumb topping and often a cinnamon ribbon inside. Both are named for being served with coffee rather than for having coffee in the batter.
Why is my coffee cake dry?
Dry coffee cake usually comes from too much flour, overmixing, or leaving it in the oven past the moment the center sets. Spoon the flour into the cup and level it off instead of scooping straight from the bag, and stop the mixer as soon as the last dry streaks vanish. Start checking at 40 minutes and pull the pan when the toothpick comes out with moist crumbs rather than a clean streak.
Can I add nuts or fruit to this coffee cake?
Yes, stir ½ cup of chopped pecans or walnuts into the streusel before you chill it, or fold 1 cup of blueberries into the batter after the flour is mixed. Toss the berries in a spoonful of flour first so they do not sink to the bottom. Fruit adds moisture, so add 5 minutes to the bake time and test the center before you pull the pan.
