Turn overripe bananas into a moist, flavorful sour cream banana bread enhanced by the nutty depth of brown butter. Perfect for breakfast, a snack, or dessert any time of year.
Here in New Jersey the weather has been unpredictable this season—one day sweltering, the next chilly. That sudden shift happened to coincide with several bananas on my counter finally turning perfectly overripe. The result? An excellent reason to bake banana bread.
This loaf combines a tender, moist crumb with a strong banana scent and complementary savory-sweet notes from brown butter and dark brown sugar. It’s been a family favorite for years and is reliably comforting.
Why I Love This Sour Cream Banana Bread
This recipe delivers what I look for in banana bread: a truly moist crumb, an unmistakable banana aroma, and layered richness from browned butter and dark brown sugar. The sour cream keeps the texture tender while the brown butter adds a toasty, nutty edge that elevates the whole loaf.
What Goes In Sour Cream Banana Bread
This is a decadent, indulgent banana bread rather than a lightened loaf. If you want a lighter version there are great recipes using Greek yogurt and whole wheat—this one focuses on flavor and comfort. The primary ingredients are:
- Overripe bananas (the riper, the better)
- Brown butter (beurre noisette)
- Eggs
- Vanilla extract
- Sour cream
- All-purpose flour
- Cinnamon and nutmeg
- Kosher salt
- Baking powder and baking soda
- Finely grated orange zest (optional)
- Toasted walnuts (optional)
Tips for Making the Best Banana Bread
- Use heavily speckled bananas. Bananas with brown skins have converted starches to sugars and develop a stronger aroma and sweeter flavor—ideal for banana bread.
- Measure mashed bananas by volume. Rather than counting bananas, aim for 1 cup of mashed banana for this loaf. That usually equals 2–3 medium bananas depending on size.
- Don’t skip browning the butter. Browning adds toasty, caramel-like notes that deepen the flavor. Cook over medium heat, watching closely so the milk solids brown but don’t burn.
- Avoid over-mixing. Stir the batter until just combined. A few streaks of flour are fine—over-mixing will make the crumb tougher.
- Try the orange zest. A small amount of finely grated orange zest brightens the loaf and balances the richer flavors—optional, but recommended at least once.
How to Store Your Loaf
Store the bread tightly wrapped at room temperature for up to two to three days. For longer storage keep it refrigerated for up to a week—warm it slightly before serving for best texture.
To freeze, wrap the loaf or individual slices in several layers of plastic wrap and store in the freezer for up to three months. Freezing slices makes it easy to enjoy a single portion without thawing a whole loaf.
Tip: Discard the bread if you see mold, color changes, or if it smells off or fermented.
How to Serve Sour Cream Banana Bread
I usually keep it simple: a slightly warm slice is perfect on its own. For breakfast, a smear of whipped cream cheese is delightful. If you didn’t add toasted walnuts to the batter, top a cream cheese smear with a few chopped nuts for crunch.
If you enjoy banana and chocolate together, a thin layer of chocolate-hazelnut spread is delicious. To make the loaf feel more like dessert, finish with a light cream cheese glaze or a brown butter glaze—use sparingly so the loaf doesn’t become overly sweet.
More Bread Recipes
- Buttermilk Skillet Cornbread
- Classic Beer Bread
- Homemade White Bread
Sour Cream Banana Bread with Brown Butter
Ingredients
- ½ cup unsalted butter
- ½ cup dark brown sugar, lightly packed
- ¼ cup granulated sugar
- 2 large eggs
- 1½ teaspoons vanilla extract
- ½ cup sour cream
- 1 cup mashed overripe banana
- 1¾ cups all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ½ teaspoon kosher salt
- 1 teaspoon ground cinnamon
- ¼ teaspoon ground nutmeg
- ½ teaspoon finely grated orange zest (optional)
- ¾ cup chopped toasted walnuts (optional)
Instructions
- Preheat the oven to 350°F. Butter and flour a 1-pound loaf pan (about 8½” x 4½” x 2¾”).
- In a skillet over medium heat, melt the butter and swirl the pan occasionally. Continue cooking, swirling frequently, until the milk solids turn golden and the butter smells nutty. Watch carefully to avoid burning.
- Pour the brown butter into a bowl, leaving any very dark sediment behind. Let cool slightly while you prepare the rest of the batter.
- In a medium bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, and nutmeg. Set aside.
- In a separate bowl, whisk the eggs with the brown sugar and granulated sugar until light. Whisk in the vanilla, sour cream, cooled brown butter, mashed bananas, and orange zest if using.
- Add the dry ingredients to the wet ingredients and mix just until combined. A few streaks of flour are fine; do not over-mix. Fold in the toasted walnuts if using.
- Pour the batter into the prepared loaf pan and spread evenly.
- Bake 50–60 minutes, until a tester inserted in the center comes out with a few moist crumbs attached. Cool the loaf in the pan for 10 minutes, then transfer to a wire rack to cool completely.
- Store tightly wrapped at room temperature for up to 2 days, refrigerated up to a week, or frozen up to 3 months.
Nutrition Estimate
Nutrition information is an estimate and should be used as a guideline.
These recipes use US customary measurements and have not been tested for high altitude baking.
This post was originally published in 2014 and updated with new photos and baking tips in 2019.