Coffee cake muffins layer a tender sour-cream batter with cinnamon sugar and a thick crumb topping. They do not contain coffee; the name refers to the style of cake traditionally served alongside it. Keeping the swirl, batter, and crumble distinct produces a clear cinnamon ribbon and clumpy top.
Make Crumble with Irregular Clumps
Rub cold butter into flour, brown sugar, granulated sugar, cinnamon, and salt until the mixture holds together in coarse clumps. Do not mix it into a paste. Refrigerate the bowl while making the batter so the butter remains cold and the topping stays textured in the oven.
Mix a Tender Muffin Batter
Whisk dry and wet ingredients in separate bowls. Sour cream adds moisture and mild acidity, which works with baking soda. Fold the mixtures together just until no large pockets of flour remain. A few small lumps are preferable to vigorous mixing, which can create tunnels and a firm crumb.
Fill each liner partway, add a modest layer of cinnamon sugar, then cover with remaining batter. Keep the swirl away from the paper edge so melted sugar does not glue the muffin to the liner.
Apply and Protect the Crumble
Break the chilled topping into both small and large pieces over the muffins and press very lightly so it adheres. Avoid packing it into a solid cap. Bake until a toothpick inserted into the cake portion—not directly through melted cinnamon sugar—comes out without wet batter.
- Crumble melts flat: the butter was too warm or the topping was overmixed.
- Dry muffins: measure flour carefully and stop baking once the cake portion tests done.
- Tough crumb: fold the batter less.
- Sticking liners: cool five minutes before moving muffins to a rack.
For more breakfast baking, try four scone flavors or homemade bagels. Dessert-style options are collected under Dessert Recipes. The King Arthur ingredient weight chart helps with flour measurement, and FDA flour safety guidance explains why raw batter should not be tasted.
Coffee Cake Muffins with Crumble Magic
Tender cinnamon-swirled muffins topped with buttery streusel for a cozy coffee-cake-inspired breakfast bake.
Prep Time: 20 minutes
Cook Time: 22 minutes
Total Time: 52 minutes
Servings: 12 muffins
Ingredients
- 2 cups all-purpose flour
- 3/4 cup granulated sugar
- 2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon fine salt
- 1/2 cup unsalted butter, melted and cooled slightly
- 2 large eggs
- 3/4 cup sour cream or plain Greek yogurt
- 1/2 cup milk
- 2 teaspoons vanilla extract
- 1/3 cup packed light brown sugar
- 1 1/2 teaspoons ground cinnamon
- 1 cup all-purpose flour for the crumble
- 1/2 cup packed light brown sugar for the crumble
- 1/4 cup granulated sugar for the crumble
- 1 teaspoon ground cinnamon for the crumble
- 1/4 teaspoon fine salt for the crumble
- 6 tablespoons cold unsalted butter, cubed
Instructions
- Prepare the pan and oven: Preheat the oven to 375°F (190°C). Line a 12-cup muffin pan with paper liners.
- Make the crumble: In a medium bowl, stir together the flour, brown sugar, granulated sugar, cinnamon, and salt for the crumble. Cut in the cold butter with your fingertips or a fork until coarse, clumpy crumbs form. Set aside.
- Mix the cinnamon swirl: In a small bowl, combine the brown sugar and cinnamon for the swirl. Set it aside for layering.
- Combine the dry muffin ingredients: In a large bowl, whisk together the flour, sugar, baking powder, baking soda, and salt.
- Combine the wet ingredients: In another bowl, whisk the melted butter, eggs, sour cream, milk, and vanilla until smooth.
- Make the batter: Pour the wet mixture into the dry ingredients and stir gently just until combined. Do not overmix.
- Fill and layer the muffins: Spoon a little batter into each liner, sprinkle in some of the cinnamon-sugar mixture, then add the remaining batter on top. Finish with a generous amount of crumble topping.
- Bake: Bake for 20 to 22 minutes, or until the muffins are golden and a toothpick inserted into the cake portion comes out mostly clean.
- Cool and serve: Let the muffins cool in the pan for 5 minutes, then move them to a rack. Serve warm or at room temperature.
Notes
The crumble should look a little uneven and clumpy before baking. That is what gives the tops their best texture.
