Name: Sour Cream Coffee Cake with Crumb Topping Recipe
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: American
Ingredients: 2/3 cup (135g) packed dark or light brown sugar; 3/4 cup (95g) all-purpose flour (spooned & leveled); 2 1/2 teaspoons ground cinnamon; 6 Tablespoons (85g) unsalted butter, cold and cubed; 1 1/3 cups (166g) all-purpose flour (spooned & leveled); 1 teaspoon baking powder; 1/4 teaspoon baking soda; 1/4 teaspoon salt; 1/2 cup (8 Tbsp; 113g) unsalted butter, softened to room temperature; 3/4 cup (150g) granulated sugar; 2 large eggs, at room temperature; 2 teaspoons pure vanilla extract; 1/2 cup (120g) full-fat sour cream, at room temperature; 2 Tablespoons (30ml) milk (any kind, dairy or nondairy); 1 cup (120g) confectioners’ sugar, sifted; 1/2 teaspoon pure vanilla extract; 2 Tablespoons (30ml) heavy cream or milk

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There is something undeniably comforting about a classic coffee cake, and the Sour Cream Coffee Cake with Crumb Topping Recipe is my absolute favorite twist on this beloved treat. The tender crumb, enriched by the sour cream, melts in your mouth, while the luscious cinnamon crumb topping adds a perfect sugary crunch on every bite. Whether you're serving it for a weekend brunch or craving a cozy afternoon snack alongside your favorite cup of coffee, this cake brings warmth and happiness like no other.

Ingredients You'll Need

A clear glass bowl filled with smooth, light beige batter that has a creamy, thick texture. A red spatula with a wooden handle lifts some of the batter, showing its soft and slightly sticky consistency. The bowl sits on a white marbled surface, creating a clean and bright background. photo taken with an iphone --ar 4:5 --v 7

This recipe keeps things delightfully simple with pantry staples that come together to create an unforgettable flavor and texture. Every ingredient plays a special role, from creating the tender cake base to crafting that buttery, cinnamon-packed crumb topping that defines this coffee cake.

Dark or light brown sugar (⅔ cup): Adds deep, caramel-like sweetness to the crumb, giving texture and flavor complexity.
All-purpose flour (2 portions: ¾ cup and 1 ⅓ cups): Provides structure and tenderness; spooned and leveled for accuracy.
Ground cinnamon (2 ½ teaspoons): The signature spice that gives the crumb topping its irresistible warmth.
Unsalted butter (6 tablespoons cold + ½ cup softened): Cold butter makes the crumb topping wonderfully flaky, while softened butter creates a creamy, rich cake batter.
Baking powder (1 teaspoon) & baking soda (¼ teaspoon): Leavening agents that ensure a light, perfectly risen cake.
Salt (¼ teaspoon): Enhances all the flavors and balances the sweetness beautifully.
Granulated sugar (¾ cup): Sweetens the cake and helps achieve that tender crumb.
Eggs (2 large): Bind everything together while adding moisture and richness.
Pure vanilla extract (2 ½ teaspoons total): Enhances flavor depth in both cake and icing.
Full-fat sour cream (½ cup): The star ingredient that gives the cake its moist, tender texture and subtle tang.
Milk (2 tablespoons): Adds a touch of moisture to the batter for balance and smoothness.
Confectioners’ sugar (1 cup): Creates the silky, sweet icing drizzle that complements the crumb topping.
Heavy cream or additional milk (2 tablespoons): Used to thin the icing for the perfect drizzle consistency.

How to Make Sour Cream Coffee Cake with Crumb Topping Recipe

Step 1: Prepare the Oven and Pan

Preheat your oven to 350°F (177°C). Grab an 8-inch square pan and either lightly grease it or line it with parchment paper for easy removal later. This is crucial because the size helps keep the cake thick and moist — a larger pan won't give you those perfect layers of batter and crumb.

Step 2: Make the Cinnamon Crumb Topping

In a medium bowl, combine the brown sugar, flour, and cinnamon. Cut in the cold, cubed butter using a pastry cutter, forks, or your hands until you have pea-sized crumbs. Don’t worry if there are some larger chunks here and there — that adds to the rustic charm. Pop this crumb mixture in the fridge while you work on the cake batter to keep the butter cold for that amazing texture.

Step 3: Mix the Dry Ingredients for the Cake

Whisk together the remaining flour, baking powder, baking soda, and salt in a large bowl. Setting aside these dry ingredients ensures even distribution and helps you avoid overmixing later.

Step 4: Cream Butter and Sugar

Using a mixer with a paddle attachment or a sturdy hand mixer, beat the softened butter and granulated sugar on high until the mixture is smooth, creamy, and pale—usually about 3 minutes. This step is the foundation for a tender, fluffy cake and shouldn’t be rushed!

Step 5: Add the Eggs, Vanilla, and Sour Cream

Next, add the eggs one at a time, mixing well after each addition, then stir in the vanilla extract. The moment comes to blend in the sour cream, which will make your batter a bit lumpy — don’t fret, that’s exactly how it should look. Give it a good scrape to ensure all ingredients come together beautifully.

Step 6: Incorporate Dry Ingredients and Milk

Slowly add the flour mixture on low speed, mixing just until combined. Overmixing can make your coffee cake dense, so stop as soon as no flour streaks remain. Finally, gently beat in the milk to soften the batter to a thick consistency that’s easy to spread.

Step 7: Assemble the Cake Layers

Spread half of the batter evenly in the prepared pan. Sprinkle half of your cold crumb mixture generously over the batter. Next, carefully spread the remaining batter on top—this might be a little tricky because the batter is thick and crumbly underneath, but a spoon or offset spatula will help. Finish by sprinkling the rest of the crumb topping evenly on top.

Step 8: Bake to Perfection

Bake for 35 to 40 minutes. You’ll know it’s done when a toothpick inserted into the middle comes out clean. Allow the cake to cool for about 15 minutes in the pan on a wire rack before proceeding.

Step 9: Prepare the Icing

Whisk together the confectioners’ sugar, vanilla, and heavy cream or milk until smooth. The drizzle should be pourable but not too thin — you want it to gently coat the crumb topping with a shiny, sweet glaze.

Step 10: Finish and Serve

Using the parchment paper edges, lift the cake out of the pan and place it on a serving plate. Drizzle the icing generously over the warm cake so it slightly melts into every nook and cranny. Then slice into squares and get ready for compliments!

How to Serve Sour Cream Coffee Cake with Crumb Topping Recipe

The image shows a close-up slice of crumb coffee cake placed on a white plate with a white marbled surface underneath. The cake has two main layers: a thick, soft, light yellow base layer with a moist texture and a crumbly top layer that is brown and textured with visible cinnamon spice. This crumb layer is sprinkled unevenly across the surface and is drizzled with white icing in small lines and dots. The background is softly blurred, emphasizing the detailed textures and colors of the cake. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Add a little extra flair by dusting the top with a sprinkle of cinnamon or a few chopped toasted nuts like pecans or walnuts for a bit of crunch and to echo the nutty undertones of the crumb. Fresh berries on the side add a pop of color and balance the sweetness beautifully.

Side Dishes

This coffee cake shines bright on its own, but if you want to elevate your brunch spread, serve with a dollop of Greek yogurt or creamy mascarpone cheese. A steaming cup of coffee or a frothy latte perfectly complements the cinnamon and buttery flavors, making for an indulgent start to your day.

Creative Ways to Present

If you’re hosting a gathering, consider layering slices of the cake with whipped cream and fresh fruit in individual glass jars for a charming parfait-style dessert. You can also warm the slices slightly and serve alongside a scoop of vanilla ice cream for an irresistible treat anytime.

Make Ahead and Storage

Storing Leftovers

After enjoying your Sour Cream Coffee Cake with Crumb Topping Recipe, wrap any leftovers tightly in plastic wrap or keep them in an airtight container at room temperature for up to 3 days. For longer freshness, store in the refrigerator for up to a week to preserve moisture and flavor.

Freezing

If you want to save this cake for later, slice it into individual portions and freeze in airtight containers or freezer bags. It freezes beautifully for up to 2 months. Just be sure to wrap tightly to prevent freezer burn and preserve that glorious crumb topping.

Reheating

To bring your coffee cake back to life, warm slices gently in the microwave for about 15 to 20 seconds or in a preheated oven at 300°F (149°C) for 10 minutes to recreate that fresh-baked experience. Drizzle fresh icing on top if desired after reheating.

FAQs

Can I use a different type of flour?

All-purpose flour works best for this recipe because it provides the right balance of structure and tenderness. Using whole wheat or gluten-free blends will change the texture, but you can experiment—just expect a denser cake.

What if I don’t have sour cream? Can I substitute it?

You can substitute sour cream with an equal amount of Greek yogurt or crème fraîche. These options provide similar moisture and tang, but avoid low-fat or non-dairy varieties as they might affect the texture.

Why is my crumb topping not crunchy?

If your crumb topping isn’t crunchy, it’s likely because the butter was too warm during mixing or the cake was stored uncovered. Always use cold butter when making crumbs and bake the topping properly. Storing the cake in an airtight container also helps preserve crunch.

Can I make this recipe in a round pan?

You can bake it in a 9-inch round pan, but the cooking time will be shorter, and the cake might be thinner. Keep an eye on it and adjust bake time accordingly. The square pan is best for that as-stacked coffee cake aesthetic.

How long does this cake keep its freshness?

Freshly baked, this sour cream coffee cake stays moist and tender for about 3 days at room temperature, longer if refrigerated. I recommend enjoying it within a week for the best taste and texture.

Final Thoughts

There’s something truly special about the Sour Cream Coffee Cake with Crumb Topping Recipe that feels like a warm hug in dessert form. With each bite, you get the perfect harmony of moist cake, a buttery crumb topping, and a sweet vanilla drizzle. I truly hope this recipe becomes your go-to for breakfast gatherings, coffee breaks, or anytime you want to spread a little happiness with a slice of homemade love.

Sour Cream Coffee Cake with Crumb Topping Recipe

Ingredients You'll Need