Sour Cream Banana Bread Recipe (Extra Moist)

This sour cream banana bread is extra soft, moist and full of banana flavor, and it makes two loaves, so you can eat one now and share or freeze the other. The sour cream goes right into the batter along with the mashed bananas, which gives you a tender, even crumb that stays soft for days. The method is the classic one: cream the butter and sugar, beat in the eggs, stir in the wet ingredients, then fold in the flour. No mixer tricks, no special pans, just a good bowl of ripe bananas.

Why You’ll Like This Sour Cream Banana Bread

Banana bread is easy to love, and this version keeps things simple. You use pantry basics, one bowl for the batter and a small bowl for the dry ingredients. The loaves bake up golden on top with a soft, moist inside that slices cleanly.

• Extra soft crumb: sour cream keeps the loaf tender and moist.
• Two loaves: bake in two small 8×4 pans, one for today and one for later.
• Simple ingredients: butter, sugar, eggs, flour and ripe bananas.
• Easy method: the standard creaming method, nothing fussy.

Ingredients for Sour Cream Banana Bread

• ½ cup butter, softened
• 1¼ cups granulated sugar
• 2 large eggs
• 1 teaspoon vanilla extract
• 1 cup sour cream
• 1 cup ripe bananas, mashed (about 2 to 3 medium)
• 2 cups all-purpose flour
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• ¾ teaspoon salt

You will also need two 8×4-inch loaf pans, a large mixing bowl, a medium bowl, a spatula and a toothpick.

Ingredient Notes

Bananas: Use bananas with plenty of brown spots. The riper they are, the sweeter and more fragrant the bread will be. Mash them with a fork until mostly smooth, leaving a few small lumps if you like.

Sour cream: Full-fat sour cream gives the richest, softest texture. Let it sit out for a little while so it is not ice cold when it goes into the batter.

Butter and eggs: Softened butter creams much more easily, and room temperature eggs blend in more smoothly. Take both out of the fridge about 30 minutes before you start.

Flour: Spoon the flour into your measuring cup and level it off. Scooping straight from the bag packs in extra flour and can make the bread dense.

How to Make Sour Cream Banana Bread

Step by Step

1. Prep the oven and pans. Heat the oven to 350°F. Grease two 8×4-inch loaf pans well, or line them with parchment so the loaves lift out easily.
2. Mix the dry ingredients. In a medium bowl, whisk together the flour, baking powder, baking soda and salt. Set it aside.
3. Cream the butter and sugar. In a large bowl, beat the softened butter and sugar together until light and fluffy, about 2 minutes.
4. Add the eggs and vanilla. Beat in the eggs one at a time, then add the vanilla and mix until combined.
5. Stir in the sour cream and bananas. Add the sour cream and mashed bananas and mix just until blended. The batter may look a little curdled at this point, which is normal.
6. Fold in the flour. Add the dry ingredients and fold gently with a spatula until no streaks of flour remain. Stop as soon as it comes together.
7. Fill the pans. Divide the batter evenly between the two prepared pans and smooth the tops.
8. Bake. Bake at 350°F for about 55 minutes, until the tops are deep golden and a toothpick inserted in the center comes out clean or with a few dry crumbs.
9. Cool. Let the loaves rest in the pans for 10 minutes, then turn them out onto a wire rack to cool before slicing.

Tips for the Softest, Most Moist Banana Bread

Don’t Overmix the Batter

Once the flour goes in, fold just until it disappears. Overmixing develops the gluten and can make the loaves tough instead of tender.

Check With a Toothpick

Ovens vary, so start checking at about 50 minutes. Insert a toothpick into the center of each loaf. If it comes out with wet batter, bake for another 5 minutes and test again. A few moist crumbs are fine, but raw batter is not.

Tent With Foil if the Top Browns Fast

If the tops are getting dark before the centers are done, lay a loose piece of foil over the pans for the last part of baking.

Use Properly Ripe Bananas

Yellow bananas with a few spots will work, but heavily speckled ones give much better flavor. If yours are not ripe enough yet, leave them on the counter a few more days.

Measure the Bananas

One cup of mashed banana is the amount this recipe is built around. Too much extra banana can make the middle gummy, so measure after mashing.

Let the Loaves Cool a Bit

Moist breads are delicate when hot. Ten minutes in the pan, then a short rest on the rack, gives you cleaner slices.

Variations

• Chocolate chip: Fold in 1 cup of chocolate chips with the flour.
• Walnut or pecan: Add ¾ cup of chopped nuts to the batter, or scatter some on top before baking.
• Cinnamon sugar top: Mix 2 tablespoons of sugar with 1 teaspoon of cinnamon and sprinkle it over the batter in the pans.
• Muffins: Fill lined muffin cups about three-quarters full and bake at 350°F for roughly 20 to 25 minutes, testing with a toothpick.
• One big loaf: The batter can go into a 9×5-inch pan, but it will need a longer bake. Start checking at 65 minutes.

Storage and Freezing

Room temperature: Once completely cooled, wrap the bread well or keep it in an airtight container for up to 3 days.

Refrigerator: Store it in an airtight container in the fridge for up to 5 days. Let slices come to room temperature before serving, or warm them briefly.

Freezer: Wrap the cooled loaf tightly in plastic wrap, then place it in a freezer bag. Freeze for up to 3 months and thaw on the counter. You can also freeze individual slices and thaw them as needed.

Reheating: Warm a slice in the microwave for about 15 seconds, or toast it lightly and spread on a little butter.

Frequently Asked Questions

Can I use Greek yogurt instead of sour cream?

Yes, plain Greek yogurt can be swapped in one-for-one. The flavor will be a bit tangier and the crumb slightly less rich, but the bread will still be moist.

How many bananas do I need?

Plan on 2 to 3 medium ripe bananas to get 1 cup mashed. Since sizes vary, mash them first and measure.

Why did my banana bread sink in the middle?

This usually means it was underbaked or the oven door was opened too early. Wait until at least the 50-minute mark before checking, and make sure the toothpick comes out clean before taking the loaves out.

Can I bake this in a different pan size?

You can. Larger pans make a thinner or wider loaf and change the bake time. For two small 8×4 loaves, expect about 55 minutes at 350°F. For other sizes, start checking early and use a toothpick to decide when it is done.