Sugar Cookie Coffee Cake is a vanilla coffee cake with a sugar cookie-style crumb topping and a simple vanilla glaze on top.

I like this one because the cake stays soft and buttery, and the crumb is more like a cookie than a standard streusel. It has that clear vanilla-forward flavor that works for breakfast or dessert.

For me, it’s best for brunch, holiday mornings, or any time I want a simple square-pan cake that slices neatly. I’ll sometimes add sprinkles when I’m serving it for a birthday breakfast or a little weekend treat.

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Why You’ll Love This Recipe

Cookie crumb topping: The topping bakes up clumpy and a little crisp at the edges, more like a sugar cookie than a cinnamon streusel.

Soft vanilla cake: Sour cream keeps the crumb tender and gives you that rich, bakery-style softness (in a very home-bake way).

Easy square-pan bake: A 9-inch square pan is simple, reliable, and makes neat slices that stack well on a platter.

Sprinkles are optional: Leave them out for a more classic look, or add them for a festive coffee cake that doesn’t feel fussy.

Simple glaze: The vanilla glaze is quick and gives you that sweet finish without needing frosting.

Key Ingredients

Cake Batter

All-purpose flour: I use regular flour here. Spoon and level if you tend to pack flour into the cup.
Baking powder: Helps the cake rise and keeps the crumb light.
Baking soda: Works with the sour cream to give a nice lift and a softer texture.
Fine salt: Don’t skip it. It keeps the cake from tasting flat and makes the vanilla taste more “real.”
Unsalted butter: Softened butter creams best with the sugar, so give it time on the counter. If it’s melty, the batter can get a little loose.
Granulated sugar: This keeps the flavor clean and classic, which is what I want in a sugar-cookie style cake.
Eggs: Room temp eggs mix in more smoothly. Cold eggs can make the batter look slightly curdled.
Vanilla extract: Use what you like the taste of, because you’ll notice it in this cake.
Sour cream: Full-fat is best here for a tender, rich crumb. Plain Greek yogurt works too if that’s what you have.
Milk: Just enough to loosen the batter so it spreads easily in the pan.

Sugar Cookie Crumb Topping

All-purpose flour: Regular flour is perfect for that cookie-crumb texture.
Granulated sugar: This is what gives the topping that sugar-cookie sweetness and crunch.
Fine salt: A little salt keeps the topping from tasting one-note sweet.
Unsalted butter: Melted butter makes this quick and gives you nice clumps when you stir it together.
Vanilla extract: A little extra vanilla up here really helps sell the “sugar cookie” idea.
Rainbow sprinkles (optional): Totally optional, but they’re cute and make it feel a little more special.

Vanilla Glaze

Powdered sugar: This gives you a smooth glaze that sets up nicely once it sits for a bit.
Milk: Start with a small amount and add more slowly. It’s easy to thin a glaze and annoying to thicken it back up.
Vanilla extract: Keeps the glaze in the same flavor lane as the cake.
Salt: Just a pinch makes the glaze taste less like straight sugar.

Recipe Instructions

Preheat the oven: Heat the oven to 350°F. Grease a 9-inch square pan and line it with parchment paper, leaving a little overhang so you can lift the cake out later.
Mix the dry ingredients: In a medium bowl, whisk the flour, baking powder, baking soda, and salt together. Set aside.
Cream the butter and sugar: In a large bowl, beat the softened butter and granulated sugar until light and fluffy.
Add the eggs: Beat in the eggs one at a time, mixing until each one is combined.
Add the vanilla: Mix in the vanilla extract.
Add the sour cream: Mix in the sour cream until the batter looks smooth and creamy.
Add the dry ingredients: Mix in the dry ingredients alternating with the milk, just until you no longer see dry flour.
Spread the batter: Scrape the batter into the prepared pan and spread it into an even layer.
Make the topping: In a bowl, stir the flour, sugar, salt, melted butter, and vanilla until clumpy. Fold in sprinkles if you’re using them.
Add the topping: Crumble the topping evenly over the batter, making a mix of small and medium clumps.
Bake: Bake for 35 to 45 minutes, until the top is set and a toothpick comes out with a few moist crumbs.
Cool: Cool in the pan for about 20 minutes, then lift the cake out using the parchment and let it cool more before glazing.
Make the glaze: Whisk the powdered sugar, milk, vanilla, and a pinch of salt until thick but pourable. Add a tiny splash more milk if needed.
Glaze and serve: Drizzle the glaze over the cooled cake, then slice into 9 pieces and serve.

My Tips!

This is the section that separates “good” from “wow.” If you read only one part of this post, make it this one — it’s where I reveal my recipe trick.

Recipe Tips & Tricks

Use full-fat sour cream if you can. It makes a noticeable difference in how tender the cake is. Greek yogurt works, but the cake is a touch less rich.

Stop mixing as soon as the flour disappears. Overmixing can make the crumb tighter and a little dry. I usually finish the last few stirs with a spatula.

Chill the crumb topping if you want bigger clumps. Ten minutes in the fridge helps it hold together more like a cookie crumble when you scatter it over the batter.

Tent with foil if the top is getting dark. If your oven runs hot or your topping is browning fast, loosely cover the pan for the last 10 minutes or so.

Let it cool before glazing. If the cake is still warm, the glaze will soak in and disappear instead of sitting on top in ribbons.

Simple tweaks

Here’s where the fun begins — a few simple tweaks can turn this recipe from casual treats into the star of any party.

Serving Suggestions

Coffee or espresso: This is really good with coffee, especially if you like sweet coffee cakes. I usually go for plain drip coffee or an unsweetened latte.
Fresh berries: A handful of strawberries, raspberries, or blueberries on the side keeps the plate feeling a little lighter. It’s also nice if you’re serving this at brunch.
Whipped cream: A small spoonful of lightly sweetened whipped cream is simple and fits the vanilla flavor. I like it best when the cake is fully cooled and the glaze has set.
Extra sprinkles: If you used sprinkles in the topping, a few on the glaze makes it look finished. This is a fun move for birthdays or holiday mornings.

Eat it later

This section explains how to store leftovers properly and how far in advance the recipe can be prepared.

Storage and Make Ahead

Store leftovers covered at room temperature for 2 days, or refrigerate if your kitchen is warm. I like keeping it in the pan with foil over the top, or in a lidded container.

Refrigerate for up to 4 days if you want it to last longer. The topping will soften a bit in the fridge, but the cake stays moist.

For serving, I usually warm a slice in the microwave for a few seconds. The glaze will melt slightly, which is fine.

If you want to freeze individual portions, wrap slices well and freeze. Thaw in the fridge overnight or on the counter, then warm gently if you want.

It could help!

Before you close the tab or print the recipe, scroll through these quick answers.

Recipe FAQs

Can I use Greek yogurt instead of sour cream?

Yes. Plain Greek yogurt works well in the same amount. The cake is still soft, just a little less rich than when you use full-fat sour cream.

How do I know when the coffee cake is done?

The top should look set, and a toothpick inserted near the center should come out with a few moist crumbs (not wet batter). In my oven it’s usually around the 38 to 42 minute mark, but pan and oven differences matter.

What if my crumb topping is browning too fast?

Loosely tent the pan with foil for the last 10 minutes of baking. You’re not sealing it tight—just giving the top a little protection while the center finishes.

Can I make the glaze thicker or thinner?

Yes. For a thicker glaze, use less milk and drizzle it slowly. For a thinner glaze, add milk a tiny splash at a time until it’s the consistency you like.

Do I have to use sprinkles?

No, you can leave them out completely. The topping still tastes like a vanilla sugar cookie crumble without them.

Keep it with you

The printable version with print button is at the end of the post, easy to follow, and includes all the steps you’ll need.

Sugar Cookie Coffee Cake

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Prep Time: 15

Cook Time: 38

Total Time: 53

Serving Size: 9

Vanilla coffee cake with a sugar cookie style crumb topping and simple vanilla glaze