Oatmeal coffee cake with spiced crumble topping, you won’t be able to resist. A simple coffee cake topped with a delicious crumble.

This coffee cake is the perfect comfort food that you will love for a quick breakfast or a sweet afternoon snack. Also, you will love how easy it is to make.
I love a good crumble topping on coffee cakes. This one has the perfect combination of ingredients. I love the old-fashioned oat along with the cinnamon and cardamom spice. It makes this coffee cake irresistible.

Helpful tips
- I like to use old-fashioned oats for this recipe because of their texture, but you can use quick oats if you prefer.
- It is best to melt the butter for the cake part of the recipe. The melted butter will blend easily with the other ingredients.
- I like the flavor that the peanuts bring to the topping. If you prefer, you can use other nuts for this recipe if you like. Just remember that the topping will have a different flavor.
- Use a springform pan for easy removal of the coffee cake. Make sure to grease the pan before adding the batter.
- Check for doneness several minutes before the time is up. Each oven bakes differently; it is best to check early, so as not to overbake.
- Check for doneness with a toothpick. If it comes out clean, the cake is done. Another way to check for doneness is to make sure that the center of the cake is set.
- The coffee cake can be frozen in an airtight container for up to three months.
Ingredients
Cake
- Flour
- Old Fashion Oats
- Granulated Sugar
- Brown Sugar
- Baking Powder
- Cinnamom
- Eggs
- Butter
- Sour Cream
- Milk
Topping
- Brown Sugar
- Flour
- Old Fashion Oats
- Cinnamon
- Cardamom
- Peanuts
- Butter
Steps for making this easy oatmeal coffee cake
Preheat the oven to 375 degrees F. Grease a 9-inch springform pan
Steps one and two
Combine the flour, oats, sugar, brown sugar, baking powder, and cinnamon in a large bowl. In another bowl, combine the melted butter, eggs, sour cream, and milk.


Steps three and four
Add the wet ingredients to the dry ingredients. Mix until the ingredients are combined. Spread the batter in the prepared springform pan.


Steps five, six, and seven
For the crumble topping, add the brown sugar, flour, oats, cinnamon, cardamom, and butter, mix well. Sprinkle the topping over the top of the batter that has been spread in the springform pan. Bake in a 375 degree F oven for 30 – 40 minutes.



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Oatmeal Coffee Cake with Spiced Crumble Topping
Ingredients
- 1 1/4 cup flour
- 3/4 cup old fashion oats
- 2 teaspoons baking powder
- 3/4 cup sugar
- 1/4 cup brown sugar
- 1/2 teaspoon salt
- 1 1/2 teaspoon cinnamon
- 2 large eggs
- 1/4 cup melted butter
- 1/4 cup sour cream
- 1/4 cup milk
- Topping –
- 1/2 cup brown sugar
- 1/3 cup flour
- 3/4 cup old fashion oats
- 1 teaspoon cinnamon
- 1/4 teaspoon cardamom
- 1/4 cup chopped peanuts
- 5 tablespoons butter softened
Instructions
Cake
- Preheat oven to 375 degrees F. Grease a 9-inch springform pan.
- In a medium bowl mix together the 1 1/4 cups flour, 3/4 cups oats, baking powder, sugar, 1/4 cup brown sugar, salt, and cinnamon.
- In another bowl add the eggs, 1/4 cup butter, sour cream, and milk, mix together until well blended. Pour the wet ingredients into the dry ingredients, mix just until blended. Pour the batter into the prepared baking dish.
Topping
- Add the brown sugar, flour, oats, cinnamon, cardamom, peanuts, and butter to a medium bowl and mix with a fork or by hand until well combined. Sprinkle over the top of the batter.
- Place into the preheated oven and bake for 30 to 40 minutes or until a wooden toothpick comes out clean. Remove from the oven and set on a cooling rack to cool.
Notes
- I like to use old-fashioned oats for this recipe because of their texture, but you can use quick oats if you prefer.
- It is best to melt the butter for the cake part of the recipe. The melted butter will blend easily with the other ingredients.
- I like the flavor that the peanuts bring to the topping. If you prefer, you can use other nuts for this recipe if you like. Just remember that the topping will have a different flavor.
- Use a springform pan for easy removal of the coffee cake. Make sure to grease the pan before adding the batter.
- Check for doneness several minutes before the time is up. Each oven bakes differently; it is best to check early, so as not to overbake.
- Check for doneness with a toothpick. If it comes out clean, the cake is done. Another way to check for doneness is to make sure that the center of the cake is set.
- The coffee cake can be frozen in an airtight container for up to three months.
Nutrition
This recipe was originally published on January 16, 2016. It has been updated with new content and pictures on July 17, 2025.

This is so DELICIOUS! I love that it’s loaded with oatmeal.
always curious about oatmeal recipes.. This is just Lovely…
I have one coffee cake recipe that I trust, but now I have to give yours a try. The Coffee Cake looks delicious with that yummy crunchy topping.
Coffee cake is a favorite around our house, and I’ve always said that it’s just a vessel for delicious crumble topping! I love your version with oats and peanuts. What an interesting combo…but I can see how it would be perfect on a coffee cake! ๐
Yeah, the crumble always gets me, too! What a lovely coffee cake!
This sounds like a great coffee cake. I don’t think I’ve ever added oatmeal in one but it’s time to try it. Thanks for sharing!
I do daydream about crumble toppings! And cupcakes, and apple fritters, and chocolate, hehehe. This coffee cake looks wonderful, Dawn ๐
I love this cake !
I love the crumble. Look amazing !
This recipe looks absolutely delish! I was wondering how it would taste to substitute sour cream for peanut butter? Would it be too crazy? Thanks!
Peanut butter might work, but I have never tried it. I love peanut butter, so it sounds good to me. If you do try peanut butter in the recipe please let me know how it turns out.
This is an easy recipe to make, and the crumble topping is delicious.
This is the perfect cozy Fall dessert. The hearty oats combined with the lovely cinnamon and cardamom create such a flavor-licious treat!