Ingredients
2/3 cup packed dark or light brown sugar Provides sweetness and a caramel-like depth to the crumb topping.
3/4 cup all-purpose flour Forms the base of the crumb, helping it hold together for that perfect crunchy texture.
2 and 1/2 teaspoons ground cinnamon Adds warm, spicy notes that enhance the overall flavor of the coffee cake.
6 tablespoons unsalted butter, cold and cubed Ensures the crumb stays firm and buttery when baked.
1 and 1/3 cups all-purpose flour Builds the structure of the cake, keeping it light and fluffy.
1 teaspoon baking powder Helps the cake rise and achieve a tender crumb.
1/4 teaspoon baking soda Works with the baking powder to add lift and balance the acidity from the sour cream.
1/4 teaspoon salt Enhances all the flavors, making the coffee cake taste more balanced and delicious.
1/2 cup unsalted butter, softened Creates a creamy base that mixes well with sugar for a smooth batter.
3/4 cup granulated sugar Sweetens the cake and contributes to its golden color and moist texture.
2 large eggs, at room temperature Adds richness and helps bind the ingredients together.
2 teaspoons pure vanilla extract Infuses a sweet, aromatic flavor that elevates the entire cake.
1/2 cup full-fat sour cream, at room temperature Keeps the cake incredibly moist and tender, acting as a key moisture source.
2 tablespoons milk (any kind) Thins the batter slightly for easier mixing and a softer final product.
1 cup confectioners’ sugar, sifted Forms the base of the icing, creating a smooth, sweet drizzle.
1/2 teaspoon pure vanilla extract Adds a hint of flavor to complement the cake’s taste.
2 tablespoons heavy cream or milk Helps achieve the right consistency for easy drizzling over the warm cake.
Instructions
1-First Step: Preparation and Mise en Place: Begin by preheating your oven to 350°F (177°C) and preparing an 8-inch square pan by lining it with parchment paper or greasing it thoroughly. This step ensures even baking and easy removal. Measure out all your ingredients ahead of time, making sure butter, eggs, and sour cream are at room temperature for better mixing. Once everything is ready, you’re set to create a wonderful coffee cake that fits various preferences.
2-Second Step: Making the Crumb Mixture: In a bowl, combine 2/3 cup packed dark or light brown sugar, 3/4 cup all-purpose flour, and 2 and 1/2 teaspoons ground cinnamon. Cut in 6 tablespoons of cold, cubed unsalted butter until the mixture forms pea-sized crumbs, which helps it stay structured. Refrigerate this mixture while you prepare the rest, adapting it for dietary needs like using vegan butter if required. This sets the stage for that signature coffee cake topping.
3-Third Step: Preparing the Cake Batter: Whisk together 1 and 1/3 cups all-purpose flour, 1 teaspoon baking powder, 1/4 teaspoon baking soda, and 1/4 teaspoon salt in a separate bowl to combine the dry ingredients evenly. In another bowl, cream 1/2 cup softened unsalted butter and 3/4 cup granulated sugar until smooth and fluffy, which usually takes about 2-3 minutes. Add 2 large eggs at room temperature and 2 teaspoons pure vanilla extract, mixing well before incorporating 1/2 cup full-fat sour cream. For variations, you could substitute sour cream with Greek yogurt if needed. This coffee cake batter will be thick, so mix on low speed and then stir in 2 tablespoons milk to reach the right consistency, avoiding overmixing to keep the cake light.
4-Fourth Step: Assembling and Baking: Spread half of the batter evenly in your prepared pan, using a spoon or spatula for help. Sprinkle half of the refrigerated crumb mixture over the batter, then add the remaining batter and top with the rest of the crumbs. Bake for 35-40 minutes, or until a toothpick inserted in the center comes out clean, adjusting time for different pan sizes like 40 minutes for a 9×5-inch loaf. If adapting for dietary preferences, ensure substitutions are made before baking to maintain the coffee cake’s quality.
5-Final Step: Finishing Touches and Serving: Once baked, remove the coffee cake from the oven and let it cool for about 15 minutes in the pan. If desired, mix 1 cup sifted confectioners’ sugar with 1/2 teaspoon pure vanilla extract and 2 tablespoons heavy cream or milk to make the icing, then drizzle it over the warm cake for extra sweetness. Check out this streusel variation for more ideas. Slice and serve your coffee cake warm, storing leftovers properly for up to 3 days, as it serves 9-12 people perfectly for sharing. For external inspiration, see another popular coffee cake recipe to enhance your baking skills.
Notes
🧈 Use cold butter in the crumb topping to maintain its structure and create a perfect texture.
🍽️ Because the batter is thick, use a spoon or offset spatula to spread it evenly; perfection isn’t necessary.
🥛 Ensure butter, eggs, and sour cream are at room temperature for better mixing and texture.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 1 slice