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close up of large wedge of gluten-free cinnamon crumb cake with white icing dripping

Gluten-Free Sour Cream Coffee Cake

Author: Janet Harlow
Course: Baked Goods
Cuisine: American
Servings: 1 9" round
This gluten-free coffee cake has a rich sour cream cake topped with a thick layer of cinnamon crumb.
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Prep Time 20 mins
Cook Time 45 mins
Total Time 1 hr 5 mins

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Cinnamon Crumb Topping

  • 7 Tbsp unsalted butter
  • 1 tsp vanilla
  • c gluten-free flour blend*
  • ½ c dark brown sugar
  • c sugar
  • 2 tsp cinnamon
  • ½ tsp xanthan gum
  • ¼ tsp salt

Sour Cream Cake

  • c flour
  • tsp baking powder
  • ½ tsp baking soda
  • ½ tsp salt
  • 2 tsps vanilla
  • 2 large eggs
  • 1 c + 2 Tbsp sugar
  • ¾ c sour cream
  • c oil sunflower or canola


  • Pre-heat the oven to 350°F. Grease a tube pan or, if you don't have one use a 8 or 9 inch cake pan, or 8" square baking dish and place a metal cup or something oven-safe in the middle.
  • Make the Cinnamon Crumb Topping
  • Melt the butter with the vanilla extract
  • Combine the dry ingredients in a mixing bowl. Stir well and break up any brown sugar clumps.
  • Add the melted butter and vanilla and stir until all of the dry ingredients are moistened.
  • Make the Sour Cream Cake
  • In a large mixing bowl, whisk the dry ingredients together.
  • In a separate bowl, whisk the eggs, vanilla, sugar, sour cream and oil. Whisk until the sugar is dissolved and the mixture is pale and creamy.
  • Pour the liquid into the flour mixture and stir until smooth.
  • Spread the cake batter into the pan. Top with 1/3 of the cinnamon crumb. Use a fork or spoon to press the crumb into the batter.
  • Top with the remaining crumb and gently press down to adhere the crumb to the cake.
  • Bake for 50 minutes or until a toothpick inserted in the center comes out dry.


*If using a gluten-free flour blend that contains xanthan gum, guar gum or inulin, omit the xanthan gum called for in the recipe.
This recipe works well with King Arthur Measure for Measure Gluten-Free Flour and several other store-bought flours. Be sure to check out this collection of King Arthur Gluten-Free Flour Recipes
Did you make this recipe?Let me know how it was! Tag @chefjanetk on Instagram.