Easy Gluten Free Coffee Cake

This gluten free coffee cake has that classic rich, tender golden cake, topped with a that classic nubby, sweet streusel topping.

I always loved coffee cake with big pieces of brown sugar-sweetened crumble on top, and would not stop until I had a coffee cake recipe that won’t disappoint the crumble lovers among us!

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Recipe ingredients

Here are the ingredients you’ll need to make both the crumble topping and the yellow cake beneath it, followed by information about the role of each ingredient in the ideal finished cake:

For the crumble topping

• Unsalted butter: Adds flavor and richness, and the moisture that brings the topping together. It starts out melted, and becomes firm in the refrigerator before using it to top the cake.
• Brown sugar: Adds sweetness and depth of flavor, and what you smell baking in the oven.
• Granulated sugar: Provides sweetness, and also helps the topping crisp in the oven.
• All purpose gluten free flour blend: Responsible for the structure of your crumble that keeps it from melting into the rest of the cake; your blend must have some xanthan gum or the crumble won’t keep its shape. I recommend a high-quality blend with a finely ground rice flour, like Better Batter’s classic blend, Nicole’s Best multipurpose, or Bob’s Red Mill 1-to-1 gluten free baking flour.

For the cake

• All purpose gluten free flour blend: Just like in the topping, this provides structure and texture for the cake. I recommend Better Batter’s original blend without added xanthan gum, Nicole’s Best with 1/2 teaspoon xanthan gum, or Bob’s Red Mill 1-to-1.
• Cornstarch: Helps add some tenderness by improving moisture retention of the flour.
• Baking powder: Provides most of the rise.
• Baking soda: Reacts with the acid in the sour cream to provide some rise, and helps the cake brown in the oven.
• Salt: Brings out all the other flavors and offsets the sweetness a bit
• Ground cinnamon: Adds warmth and depth of flavor, but you can leave it out if you’d prefer more plain butter flavor.
• Butter: Adds richness, tenderness, and buttery flavor.
• Sour cream: Adds moisture, tang, and gives the dense crumb a velvety mouthfeel.
• Granulated sugar: Adds sweetness, bulk, and helps keep the cake soft and moist by locking in moisture.
• Milk: Lightens the crumb a bit and adds moisture to help bring the batter together.
• Vanilla extract: Adds depth of flavor.
• Eggs: Add rise, bind the other ingredients together, and help maintain the cake’s structure after the rise.

How to make gluten free coffee cake (step by step photos)

Begin by making the crumble topping first so it can firm up in the refrigerator as you make the cake batter and hold its shape during baking.

Make the crumble topping
Whisk together the gluten free flours, brown sugar, granulated sugar, and salt so they’re fully combined, breaking up any lumps in the brown sugar which would harden in the oven. Mix in melted butter for easy blending into a thick mixture. Chill the topping to help the butter reform into a solid that we can later break into large irregular pieces.

Whisk the cake dry ingredients
Whisking together the dry ingredients (gluten free flours, baking powder & baking soda, & salt) fully to avoid any bitter pockets of leavener and create a smooth cake batter without overbeating.

Beat the cake wet ingredients
Beat the butter, sour cream, milk and granulated sugar in a large mixing bowl into a smooth, thick paste. This adds some air to the batter but not too much, which might cause the batter to curdle and make the cake greasy.

Add the eggs
Add the eggs last to avoid overbeating them, which can cause tunnels in the dense cake during baking.

Combine wet and dry ingredients
Mix in the whisked dry ingredients by hand since the batter will be quite thick, and a thick batter tends to climb up the beaters and become difficult to beat. Mixing by hand also lets you avoid overworking the batter which could collapse the air you did incorporate earlier, since gluten free flours have a greater tendency to collapse.

Assemble the batter
Transfer the cake batter to a prepared cake pan and spread it into an even layer so it bake evenly.

Top with crumble
Break up the chilled crumble into medium-large irregular pieces, and scatter them evenly on top of the cake. Too-small clumps will melt into the cake, and too-large clumps will taste dense, not tender.

Bake
Bake the cake at 350°F until it no longer jiggles in the center and it measures about 205°F on an instant read thermometer. This is such a dense, moist cake that a cake tester may not come out clean even when baking is done.

Cool
As soon as the cake is stable enough to transfer (less than 10 minutes), remove it from the pan and place it on a wire rack to cool completely.

Pro Tip: Do not let the cake sit in the pan for any longer than necessary after baking, and no more than 10 minutes, or the residual heat of such a moist cake will steam the outside and make the crust taste chewy.

Ingredient substitutions

This cake is versatile enough that you can make some tweaks to it when you’re catering to dietary requirements other than gluten free.

Dairy free

There is a lot of butter in this recipe, both in the crumble topping and in the cake itself. The best replacement for the butter in both places is probably Melt or Miyoko’s Kitchen brand vegan butter.

For the crumble topping, if you can’t use vegan butter, try using Spectrum nonhydrogenated vegetable shortening.

In place of sour cream, try using a good quality nondairy sour cream. You can also use plain Greek-style yogurt in place of sour cream (or strain regular nondairy yogurt of excess moisture until it resembles Greek-style). In place of regular milk, any nondairy milk is fine since there’s such a small amount.

Egg-free

There are two eggs in this coffee cake recipe, and you might be able to replace each of them with one “chia egg” each. For each, place 1 tablespoon ground white chia seeds + 1 tablespoon lukewarm water into a small bowl, mix, and allow to gel.

Corn-free

Try using arrowroot powder or even potato starch in place of cornstarch. If you can’t have cornstarch, you’ll have to avoid using Nicole’s Best, which contains cornstarch in the blend.

Gluten Free Coffee Cake Recipe

4.96 from 75 votes

By Nicole Hunn

Prep Time: 15 minutes mins

Cook Time: 40 minutes mins

Chilling time for crumble: 30 minutes mins

Yield: 9 servings

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Tender and moist golden sour cream gluten free coffee cake topped with that classic nubby, sweet streusel crumb topping.

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Equipment

• Hand mixer or stand mixer

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Ingredients 

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For the topping

• ▢ 8 tablespoons (112 g) unsalted butter, melted
• ▢ ⅓ cup (73 g) packed light brown sugar
• ▢ ¼ cup (50 g) granulated sugar
• ▢ 1 cup (140 g) all purpose gluten free flour blend, (See Recipe Notes)
• ▢ ½ teaspoon xanthan gum, omit if your blend already contains it (use a heaping 1/2 teaspoon)
• ▢ ⅛ teaspoon kosher salt

For the cake batter

• ▢ 1 ¾ cups (245 g) all purpose gluten free flour blend, (See Recipe Notes)
• ▢ ½ teaspoon xanthan gum, omit if your blend already contains it (use a heaping 1/2 teaspoon)
• ▢ 2 tablespoons (18 g) cornstarch
• ▢ ¾ teaspoon baking powder
• ▢ ½ teaspoon baking soda
• ▢ ½ teaspoon kosher salt
• ▢ 2 teaspoons ground cinnamon, optional
• ▢ 6 tablespoons (84 g) unsalted butter, at room temperature
• ▢ 1 cup (256 g) sour cream, at room temperature
• ▢ ¾ cup (150 g) granulated sugar
• ▢ 2 tablespoons (1 fluid ounce) milk, at room temperature
• ▢ 1 teaspoon pure vanilla extract
• ▢ 2 (100 g (weighed out of shell)) eggs, at room temperature

Instructions 

• Preheat your oven to 350°F. Line an 8-inch square baking pan with parchment paper and set it aside.

For the crumble topping

• The topping must be prepared first, so it can chill.
• In a medium-size bowl, place all the ingredients in the order listed, mixing to combine after each addition.
• Cover the bowl that holds the raw topping. Place the bowl in the refrigerator to chill until firm.

For the cake batter

• In a medium-size bowl, place the flour, xanthan gum, cornstarch, baking powder, baking soda, salt, and optional cinnamon, and whisk to combine well. Set the bowl aside.
• In a large bowl with a handheld mixer or the bowl of a stand mixer fitted with the paddle attachment, place the butter, sour cream, granulated sugar, milk, and vanilla, and beat well on medium speed until very smooth. Add the eggs, and beat until just combined.
• Add the dry ingredients to the bowl of wet ingredients and mix by hand until just combined. The batter will be very thick, since our liquid is mainly sour cream.

Assemble and bake the cake

• Scrape the batter into the prepared pan and smooth into an even layer with a wet spatula. Press the spatula down in the corners to eliminate any air pockets.
• Remove the chilled crumble topping from the refrigerator. Uncover the topping, and use the tines of a fork to break up the mixture into irregular pieces.
• Scatter the crumble pieces evenly on top of the cake batter. Press down gently to help the topping adhere to the batter.
• Place the cake pan in the center of the preheated oven. Bake for about 40 minutes, until the center does not jiggle in the center when the pan is shaken from side to side gently. Do not overbake or the bottom will burn.
• Remove the pan from the oven and allow the cake to cool in the pan for no more than 10 minutes, waiting just until it's just table enough to transfer. Do not leave the cake in the hot pan for too long or the outside will steam and turn chewy.
• Lift the cake out of the pan by the parchment paper liner, and place it on a wire rack. Pull out the parchment paper from underneath the cake to allow the cake to be exposed to the air while it cools completely.
• Slice into 9 equal squares and serve.

Video

Notes

Flour blend information

My favorite gluten free flour blends are Better Batter’s original blend gluten free flour and Nicole’s Best multipurpose gluten free blend. Bob’s Red Mill 1-to-1 Baking Flour should also work, but I recommend adding an additional 1/4 teaspoon xanthan gum per cup of gluten free flour to your dry ingredients or the cake will look good, but will be crumbly. 

To make your own blend using one of my “mock” recipes, please see the all purpose gluten free flour blends page.

 

Nutrition

Serving: 1slice | Calories: 503kcal | Carbohydrates: 68g | Protein: 4g | Fat: 24g | Saturated Fat: 14g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 99mg | Sodium: 323mg | Potassium: 71mg | Fiber: 2g | Sugar: 31g | Vitamin A: 763IU | Vitamin C: 0.2mg | Calcium: 72mg | Iron: 0.3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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