Banana Cake Sour Cream: A Cozy Afternoon Slice to Savor

Sometimes, the best treats come from familiar ingredients combined in unexpectedly delightful ways. This banana cake sour cream recipe is exactly that kind of comfort. It’s the kind of cake you slice when the afternoon sun filters softly through the kitchen window, and you crave something gentle yet full of character.

One afternoon, I found myself halfway through a busy day but suddenly hit with a craving for something sweet and soothing. I pulled out some overripe bananas languishing on the counter, and a tub of sour cream hiding in the fridge door. Mixing them together, I barely noticed the minutes slipping by, the kitchen filling with warm, cinnamon-scented air. When the cake finally came out, golden and tender, I grabbed a fork, took a bite, and for a moment, all the chaos paused. It wasn’t perfect—my timer beeped a bit late and I may have left the oven door slightly ajar at one point—but those small imperfections made it feel like home.

Why You’ll Love It:

  • Moist and tender texture thanks to the sour cream that adds just the right tang.
  • Ripe bananas deliver natural sweetness and a rich flavor without extra fuss.
  • It’s simple—and that’s kind of the point. No complicated steps or rare ingredients.
  • Turns everyday kitchen staples into a special treat that’s easy to share or savor solo.

Even if your kitchen doesn’t look like a baking magazine spread after this, it’ll smell amazing and taste even better.

Print

Banana Cake with Sour Cream

A moist and tender banana cake made with ripe bananas and tangy sour cream, perfect for any occasion.

  • Prep Time: 15 minutes
  • Cook Time: 45 minutes
  • Total Time: 1 hour
  • Yield: 12

Ingredients

Scale

2 cups (250 grams) all-purpose flour
1 teaspoon baking soda
1/2 teaspoon salt
1/2 teaspoon ground cinnamon
1/2 cup (115 grams) unsalted butter, softened
1 cup (200 grams) granulated sugar
2 large eggs
1 teaspoon vanilla extract
1 cup (240 grams) sour cream
3 medium ripe bananas, mashed (about 1 1/2 cups)
1/2 cup (120 ml) buttermilk

Instructions

Preheat the oven to 350°F (175°C). Grease and flour a 9×13 inch (23×33 cm) baking pan.
In a medium bowl, whisk together the all-purpose flour, baking soda, salt, and ground cinnamon. Set aside.
In a large bowl, cream the softened unsalted butter and granulated sugar together until light and fluffy, about 3-4 minutes.
Add the eggs one at a time to the butter and sugar mixture, beating well after each addition.
Mix in the vanilla extract.
In a separate bowl, combine the sour cream, mashed bananas, and buttermilk.
Add the dry ingredients to the wet ingredients in three additions, alternating with the banana mixture, beginning and ending with the dry ingredients. Mix each addition just until combined; do not overmix.
Pour the batter evenly into the prepared baking pan and smooth the top with a spatula.
Bake in the preheated oven for 40-45 minutes, or until a toothpick inserted into the center comes out clean.
Remove the cake from the oven and let it cool in the pan on a wire rack for 15 minutes.
After 15 minutes, remove the cake from the pan and allow it to cool completely on the wire rack before serving.

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Kitchen Notes: You don’t need any fancy equipment for this cake—just your usual mixing bowls and a baking pan. I usually serve slices with a cup of strong coffee or a glass of cold milk, but it’s just as good on its own. Sometimes I’ve stirred in chopped walnuts or swapped cinnamon for nutmeg, though I can’t say I’ve tested those every time. If you want to switch it up, adding a dollop of cream cheese frosting also works, but honestly, it’s just as lovely plain.

FAQ

Can I use Greek yogurt instead of sour cream? I haven’t tried it myself, but it might work as a substitute if you’re in a pinch.

How ripe should the bananas be? Somewhere between very spotty and almost black is perfect for maximum flavor and moisture.

Can I freeze this cake? Yes, wrapping it tightly and freezing for a couple of months works well. Just thaw in the fridge overnight before enjoying.

Ready to bake? Scroll up and save this recipe so you can come back to it whenever you need a little slice of calm in your day.