Cake Mix Sour Cream Coffee Cake
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Sour cream makes this Coffee Cake super moist and the best part is that it starts with a cake mix. It’s so easy to make, and loaded with lots of cinnamon crumbly goodness. This breakfast cake is an instant crowd pleaser!
If you enjoyed this cake, then you’re sure to enjoy my Cinnamon Coffee Cake, Cinnamon Pecan Coffee Cake, and Good Morning Crumb Cake recipes as well!

I love eating cake for breakfast. And I know you know I’m serious because yesterday we chatted about my lack of shame for eating all sorts of debatably inappropriate foods first thing in the morning, such as these Best Baked Apples Recipe (don’t knock it ’til you try it.)

But really, cake is on the less-weird list of breakfast foods because while admittedly I have eaten frosted chocolate birthday cake with sprinkles within 17 minutes of waking up, it’s really not that far of a stretch from the towering shortstacks that we all like to down at the local IHOP. Really? Pancakes? We didn’t even try to disguise the name on that one.

At least this coffee cake isn’t smothered in syrup, right?
Instead it’s loaded down with a cinnamon crumble topping. Oh oh oh, and that same crumble topping is rippled right throughout the center of the cake too. Raise your hand if the streusel is your favorite part?? Good. So you all know exactly what I’m talking about when I say there can never be enough streusel.

I developed this recipe as an easy-to-make totally delicious option for feeding a crowd. When family and friends are coming over, the last thing you want to do is fuss over a labor-intensive breakfast. This cake is just the thing because it starts with a cake mix and just four other ingredients. Easy peasy. And the crumble topping is a cinch to make so the prep takes only 10-15 minutes tops then it’s into the oven. Super moist and loaded with cinnamon crumble, this is an instant favorite!

More Recipes to Try
- Cinnamon Roll Pound Cake – all the cozy cinnamon roll flavor without the extra work.
- BEST Soft and Chewy Snickerdoodles – soft baked cookies that will melt in your mouth!
- Cinnamon Muffins – make your mornings better with these cozy muffins.
When you make this recipe, snap a photo and tag me on social – I love connecting with you and seeing what you’re up to in the kitchen!

Cake Mix Sour Cream Coffee Cake
Ingredients
- 1 package yellow cake mix, (mix only, not prepared)
- 1 egg
- 1 cup sour cream , (may sub plain greek yogurt)
- ¼ cup butter, melted
- 1 teaspoon vanilla
Crumble Topping
- 1 ¼ cups flour
- ⅔ cup brown sugar
- ½ cup sugar
- ½ teaspoon salt
- 1 teaspoon cinnamon
- ½ cup butter (8 tablespoons), chilled and cut into cubes
Instructions
- Preheat oven to 350 and grease a 9×13 inch baking dish with cooking spray.
- First prepare the crumble. Whisk together flour, brown sugar, sugar, salt, and cinnamon. Cut in chilled butter until crumbly. Set aside.
- Next prepare the cake. Combine cake mix, egg, sour cream, melted butter, and vanilla and mix until combined. It’s okay if the batter still has some lumps.
- Spread half the cake batter in the bottom of the greased baking dish (see note.) Sprinkle with half of the crumble mixture. Grease a rubber spatula and gently spread the remaining batter over the crumble (this takes a little finessing but it's worth it if you just work with it.) Top with remaining crumble.
- Bake for 30-35 minutes until an inserted toothpick comes out clean. Serve warm.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.













Question…Can I put the crumb “topping” in bottom of a bundt pan and Put the cake batter on top?
I’ve never tried that, to be honest. I’ve always use it on top!
Reading the reviews,,,I thought this cake was GREAT!,,i do agree that you cannot mAke 2 layers in a 9×13 pan,,,but i didnt want to anyway….as far as the thick dry crumb mixture,,,,thats exactly what a coffee cake is supposed to be!,,,i loved it!,,and so did my family,,,,,,Will defin make again!
Thank you for your awesome feedback, Dorothy!
Your welcome,,,since i wroTe this ive had several requests for this recipe!….next,i will try to come up with a vanilla fluffy cream to put into this cake after it is baked!,,,i think that would be awesome!,,,something very light,,that i can pipe in To cake with a pastry bag?
Made this cake into 2) 8×8 coffee cakes- put 1C.blueberries ontop of each cake; baked 30 mi., cooled and lightly glazed after they cooled- will save streusel topping for next time.
This was incredibly dry. I kept checking my measurements Since it didn’t seem right. Any attempt to place half down is ridiCuloUs. I think the pan size is wronG and theres twice as much crumb as a cake mix needs. Was not good. Crumb mix never got wET…dry mess and cake was over cooked.
Sorry to hear that you did not have a good experience using this recipe!
The same issue here. When the cake was done and The topp was dry, i melted a 1/2 stick of butter, drizzled over the top and broiled for about a minute. If I make this aga,iwould cut the flour down, use dark brown sugar and use mOre butter.
Just PREPARED the batter, chose Not to split THe batter because it seemed like there really wasn’t ENOUGH to do that. Left me wondering if I missed an ingredient but I checked MULTIPLE times. Batter was definitely thick but for a 9×13 pan, not enough batter to make two layers. Will see how it Comes out.
This cake is to die for. My husband’s new favorite. Dropping the top layer of batter in very small dollops all over the cake then repeatedly Dipping your spreading knife in hot water makes spreading much easier.
Thanks for your input, Yolanda! So glad your husband enjoys this cake so much!!
That was amaaaazing… i feel like i should pay you for that.
Ha! No need – your kind comment is more than enough! 🙂
I found when spreading the batter,top and bottom, it helped to add some of the topping to it then spread it with finger tips in the pan. Doing it this way I was able to spread the batter from middle to corners without so much mess.
Awesome idea- thanks, Mark!
do not use the split layer option unless you want an excercise in futility. really frustrating experience; would not recommend
just wanted to say if anyone has an offset spatula to run under very hot tap water, wipe off spatula, then spread batter. & repeat this process until all of the batter is spread in pan.