Brown Butter Banana Nut Bread & Muffins

Ingredients

Main Batter

• 300g (1¼ cups (about 3 large)) very ripe bananas, mashed — The darker and spottier the peel, the sweeter the flavor
• 113g (½ cup (1 stick)) unsalted butter — Browned, then cooled for 10 minutes
• 150g (¾ cup) light brown sugar, packed
• 100g (2 large) large eggs
• 60g (¼ cup) sour cream or plain Greek yogurt
• 5g (1 tsp) pure vanilla extract
• 210g (1¾ cups) all-purpose flour
• 5g (1 tsp) baking soda
• 4g (¾ tsp) fine sea salt
• 3g (1 tsp) ground cinnamon

Optional Mix-Ins

• 113g (¾ cup) chopped toasted walnuts or pecans — Choose one mix-in or combine with chocolate chips, up to 1 cup total
• 113g (¾ cup) semisweet chocolate chips

Optional Bakery-Style Topping (Muffins)

• 25g (2 tbsp) coarse turbinado sugar — For a crackly muffin top
• 15g (2 tbsp) sliced almonds or chopped walnuts or pecans — A light sprinkle centered on each muffin

Total flour: 210g

Hydration: N/A

Pro tip: The riper the bananas, the better the bread. Mostly black peels mean the starches have converted to sugar, which gives you deeper banana flavor and a moister crumb.

Equipment

• 9x5-inch Loaf Pan
• Small Saucepan
• Mixing Bowls
• Whisk
• Rubber Spatula
• Wire Cooling Rack
• Digital Scale (optional)

Method

Prep the Pan and Oven

Quick bread batter moves fast once mixed, so get the pan and oven ready first with your parchment paper in place.

1. Preheat the Oven. Set your oven to 350°F (175°C) and position a rack in the center.
2. Prepare the Pan. Grease a 9x5-inch loaf pan and line it with parchment paper so you can lift the loaf out cleanly after baking.

Tip: A parchment sling saves your loaf from sticking and makes the edges look cleaner.

Brown the Butter

This short step gives the loaf a nutty, caramel depth thanks to the maillard reaction happening in the milk solids.

1. Brown the Butter. In a small saucepan over medium heat, melt the butter and continue cooking until the milk solids turn golden and smell nutty, about 3 to 4 minutes.
2. Cool Slightly. Pour the browned butter into a mixing bowl and let it cool for about 10 minutes so it doesn't scramble the eggs.

Tip: Once the foam starts to settle, stay close. Brown butter goes from perfect to burnt quickly.

Mix the Batter

The goal is a well-mixed batter without overworking the flour. That's what keeps banana bread tender.

1. Mash the Bananas. Mash the bananas with a fork until mostly smooth. A few small lumps are fine and give the loaf a little texture.
2. Whisk the Wet Ingredients. Whisk the brown sugar into the cooled brown butter, then add the eggs, sour cream, vanilla, and mashed bananas until everything looks smooth and glossy.
3. Mix the Dry Ingredients. In a separate bowl, whisk together the flour (210g), baking soda (5g), fine sea salt (4g), and ground cinnamon (3g). Whisk until everything is evenly distributed, especially the baking soda, so you don't get bitter pockets in the finished bread.
4. Fold It Together. Add the dry ingredients to the wet and fold gently with a spatula just until no dry flour remains. Don't overmix. If you're using the toasted walnuts or pecans (113g), fold them in at the very end.
5. Fill the Pan. Scrape the batter into the prepared loaf pan and smooth the top.

Tip: Stop folding as soon as the flour disappears. Overmixing develops gluten and turns a tender loaf dense.

Bake and Cool

A steady bake and full cooling time give you a loaf with better oven spring and slices that stay clean instead of gummy.

1. Bake. Bake at 350°F (175°C) for 55 to 65 minutes, until a toothpick inserted in the center comes out clean or with a few moist crumbs.
2. Tent If Needed. If the top is browning too quickly after about 40 minutes, loosely tent the loaf with foil and keep baking.
3. Cool Before Slicing. Let the loaf cool in the pan for 15 minutes, then transfer it to a wire rack to cool completely before slicing.

Wait: Cooling Time

Tip: Banana bread is often even better on day two after the crumb has fully settled and the flavor deepens overnight.

Pan Options

The same batter works in every format below without changing the formula. Only the loaf uses the single-temperature bake; the muffins use a high-heat start for a bakery-style crown.

Standard 9x5 Loaf (recommended)

1. Fill the Pan. Pour all of the batter into one lined 9x5-inch loaf pan.
2. Bake. Bake at 350°F (175°C) for 55 to 65 minutes, until a tester comes out with a few moist crumbs or the center reads 200-205°F (93-96°C).

Mini Loaves

1. Divide the Batter. Portion the batter into 3 to 4 greased mini loaf pans, filling each about two-thirds full.
2. Bake. Bake at 350°F (175°C) for 28 to 35 minutes.

Standard Muffins

1. Fill the Tin. Line a standard 12-cup muffin pan. Portion about 85-95g of batter per cup, roughly three-quarters full.
2. Add the Topping (Optional). Sprinkle each muffin lightly with coarse turbinado sugar for a crackly top, then finish with a few sliced almonds or chopped walnuts or pecans centered on top. Don't overload it; the crown needs room to expand and crack naturally.
3. High-Heat Start. Bake at 425°F (220°C) for 5 minutes. This initial burst of heat gives the batter strong oven spring and starts the tall, rounded bakery-style top.
4. Finish Baking. Without opening the oven door, reduce the temperature to 350°F (175°C) and bake 12 to 16 minutes more, until a tester has a few moist crumbs or the center reaches 200-205°F (93-96°C). Dropping the temperature lets the center finish without over-browning the exterior.

Texas / Jumbo Muffins

1. Fill the Cups. Use jumbo or Texas-size muffin cups with tulip-style liners. Portion about 160-175g of batter per cup, filling nearly to the top for a big bakery-style crown.
2. Add the Topping (Optional). Sprinkle lightly with coarse turbinado sugar and a few sliced almonds or chopped nuts centered on each muffin. Keep it light so the crown can still expand and crack.
3. High-Heat Start. Bake at 425°F (220°C) for 5 minutes for strong oven spring.
4. Finish Baking. Without opening the oven, reduce to 350°F (175°C) and bake 17 to 22 minutes more, until the center reaches 200-205°F (93-96°C).

Proof test: Insert a toothpick into the center of the loaf or the thickest part of a muffin. It should come out clean or with just a few moist crumbs, or read 200-205°F (93-96°C) internally.

Bake the Loaf

Banana bread bakes best at a moderate temperature so the center sets before the crust gets too dark.

Oven: 175°C / 350°F. Internal temperature when done: 93-96°C / 200-205°F.

Bake time: PT1H

Equipment: 9x5-inch loaf pan

1. Bake until the top is well domed and a toothpick comes out with a few moist crumbs at most.

Standard Loaf Pan (recommended)

Equipment: 9x5-inch loaf pan,Parchment paper

1. Preheat. Preheat the oven to 350°F (175°C).
2. Bake. Bake 55 to 65 minutes.
3. Check. Test with a toothpick in the center before removing from the oven.

Mini Loaf Pans

Equipment: 3 to 4 mini loaf pans

1. Portion. Divide the batter evenly among mini loaf pans.
2. Bake. Bake 28 to 35 minutes at 350°F (175°C).

Standard Muffins

Equipment: Standard 12-cup muffin pan,Paper liners

1. Fill. Portion 85-95g of batter per lined cup, about three-quarters full. Top with turbinado sugar and a few nuts if you like.
2. Bake. Bake at 425°F (220°C) for 5 minutes, then reduce to 350°F (175°C) without opening the door and bake 12 to 16 minutes more.

Texas / Jumbo Muffins

Equipment: Jumbo muffin pan,Tulip-style liners

1. Fill. Portion 160-175g of batter per cup, filling nearly to the top. Add the optional sugar-and-nut topping.
2. Bake. Bake at 425°F (220°C) for 5 minutes, then reduce to 350°F (175°C) without opening the door and bake 17 to 22 minutes more, until the center reads 200-205°F (93-96°C).

Storage

• Room temperature: Store tightly wrapped or in an airtight container for up to 3 days.
• Refrigerated: Store for up to 1 week, though the crumb may firm up slightly. Warm slices before serving for the best texture.
• Frozen: Freeze the whole loaf or individual slices for up to 3 months. Wrap well to prevent freezer burn.
• Refresh: Warm slices in a 300°F (150°C) oven for 8 to 10 minutes or toast lightly.

Frequently Asked Questions

My bananas aren't ripe enough. Can I still make this?

Yes. Bake unpeeled bananas on a sheet pan at 300°F (150°C) for 15 to 20 minutes until the peels turn black. Let them cool, then mash and use as directed.

Can I use frozen bananas?

Absolutely. Thaw them fully, drain off excess liquid if there's a lot, then mash and use. Frozen bananas are often sweeter and softer than fresh ripe ones.

Why did my banana bread sink in the middle?

The most common causes are underbaking, overmixing, or opening the oven too early. Bake until the center tests done and keep the oven door closed for at least the first 45 minutes.

Can I skip browning the butter?

You can use melted butter instead, but you'll lose the nutty caramel flavor that makes this loaf special. The recipe will still work.

Can I swap the sour cream for Greek yogurt?

Yes. Plain Greek yogurt works as a 1:1 substitute and gives the loaf the same moisture and gentle tang.

Why do the muffins start at 425°F and then drop to 350°F?

The first 5 minutes of high heat gives the batter a strong burst of oven spring, which builds the tall, rounded bakery-style crown. Dropping to 350°F (175°C) without opening the door lets the center finish baking to 200-205°F (93-96°C) without over-browning the outside. The loaf skips this step and bakes at 350°F the whole time.

Nutrition

Per serving (1 slice (about 75g)): 248 calories, 36g carbohydrates, 3g protein, 11g fat, 1g fiber, 210mg sodium.