Sourdough Banana Nut Muffins

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My husband leaves for work early. Like, early enough that stopping somewhere for breakfast is a real temptation. Fast food is fast. It is also expensive and not exactly what I want him starting his day with when I know I can have something better sitting on the counter waiting for him.

That is how these sourdough banana nut muffins happened. I wanted something he could grab on the way out the door. Something real. Something made from scratch with ingredients I already had. Something that would actually hold him over.

Two muffins and he is good. That is a win.

If you have ripe bananas, sourdough starter and a muffin tin, you are already most of the way there.

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What You Need

Quick note about this photo. The recipe calls for 3 ripe bananas. This photo has one. Why? Because I baked these muffins, ate them, took the process photos and then remembered I needed an ingredient shot. I had one banana left. Welcome to real homemaking. It is still a banana. It still gets the point across. And honestly, if you have 3 bananas sitting on your counter right now, you already know what to do.

Here is what goes into these muffins:

Wet ingredients: brown sugar, melted unsalted butter, 2 eggs, vanilla extract, 120g sourdough discard or active starter and 3 ripe mashed bananas.

Dry ingredients: all-purpose flour, baking powder, baking soda and salt.

Mix-ins: about 3/4 cup of pecans or walnuts, roughly chopped.

For the flour, I use King Arthur Unbleached All-Purpose Flour. It is consistent, reliable and what I reach for in every single bake. For vanilla, I use Watkins Pure Vanilla Extract. A good vanilla makes a difference in baked goods and this one has a clean ingredient list.

I use pecans instead of walnuts in this recipe. Partly because I prefer the flavor. Partly because I am allergic to walnuts, so the choice was made for me. Either works. You can also leave the nuts out entirely if you are baking for someone with a nut allergy.

Active Starter or Discard?

Both work here. This is a quick bread, which means it gets its rise from baking powder and baking soda, not from your starter. The starter adds flavor and moisture. You do not need to feed it first. You can pull it straight from the fridge and use it as-is.

If you want to learn more about the difference between active and discard starter, I wrote a whole post on it. Can You Use Active Sourdough Starter Instead of Discard. It will answer every question you have on that topic.

What About Your Bananas?

The riper the banana, the better. You want them spotty and soft. Those brown spotted bananas that no one in your house wants to eat? Those are the ones you want for this recipe.

If your bananas are not ripe yet, do not wait. Place them unpeeled on a baking sheet and bake at 350 degrees for 20 to 25 minutes. They will turn black on the outside and come out soft, sweet and ready to mash. I did not need to do this for the batch I made here but it works every time.

How to Make Sourdough Banana Nut Muffins

Start by mashing your bananas. I use a fork and a small bowl. You want them mostly smooth with just a few small lumps.

In your stand mixer bowl or a large mixing bowl, combine your melted cooled butter and brown sugar. Whisk them together until combined.

A note on the brown sugar. I do not pack mine when I measure. Loosely filled gives you a lightly sweet muffin. If you want something sweeter, pack it. The recipe holds up either way. I use a kitchen scale for most of my baking and my loose cup came out to 170 grams. Just so you know what you are working with.

Add both eggs and whisk until smooth. Then add your vanilla, your sourdough starter and your mashed bananas. Mix until everything is fully combined.

I store my starter, Janet, in a Weck Tulip Jar. If you want to read more about how I maintain Janet and keep her going, that post is here. Sourdough Starter Maintenance.

Now add your dry ingredients. Flour, baking powder, baking soda and salt. Mix until about three quarters of the way combined. Do not overmix. Overmixing makes muffins dense and tough.

Fold in your pecans with a spatula. Gentle folds, not aggressive stirring. You want the nuts distributed evenly without working the batter any more than you have to.

Grease your muffin tin well. Use a number 16 cookie scoop to portion the batter evenly. This gives you 12 consistent muffins and takes the guesswork out of filling the cups.

Bake at 350 degrees for 20 to 25 minutes. You will know they are done when the tops are golden and a toothpick inserted in the center comes out clean.

Why Muffins and Not Banana Nut Bread?

I get asked this sometimes. The honest answer is that I like muffins more. Banana nut bread is great but it starts moist and then dries out as you slice into it over the next few days. Every time you cut a slice you expose more surface area and it slowly loses moisture.

Muffins bake all the way around. Every single muffin is sealed and holding its moisture right up until you eat it. Day three muffin still tastes like day one. A loaf of banana bread on day three does not.

Let them cool in the pan for about 5 minutes before transferring to a wire cooling rack. If you try to pop them out too soon they will stick.

Look at That Crumb

That is the crumb you are going for. Moist, tender and full of pecans all the way through. Not dry. Not dense. Just a solid muffin that tastes like it took more effort than it did.

Grab and Go

This is the whole point. Two of these on the counter in the morning and my husband walks out the door with an actual breakfast. No drive through. No skipping it entirely. Just a real, homemade muffin that he grabbed in about 4 seconds.

That is what these are for. Make a batch on Sunday and you are set for the week.

If you are looking for another sourdough bake that works great for mornings and busy weeks, my Sourdough Cinnamon Rolls are worth bookmarking. They take a little more time but they freeze beautifully.

The recipe card is below. Save it, make it and let me know how yours turn out.

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Frequently Asked Questions

Can I use discard straight from the fridge without feeding it first?

Yes. This recipe does not rely on your starter for rise. The baking powder and baking soda do that work. Your starter is here for flavor and moisture. Pull it straight from the fridge, measure out 120 grams and add it right in.

Can I make these without nuts?

Absolutely. Leave them out completely if you are baking for someone with a nut allergy or if you just prefer a plain banana muffin. The batter holds up perfectly without them.

How do I know when the muffins are done?

The tops will be golden and a toothpick inserted in the center will come out clean. Start checking at 20 minutes. Every oven is a little different so check before you assume they need the full 25.

How should I store these?

Keep them in an airtight container on the counter for up to 3 days. They also freeze well. Let them cool completely, then freeze in a zip bag. Pull one out the night before and it will be ready by morning.

Can I use frozen bananas?

Yes. Thaw them completely first and drain off any liquid before mashing. Frozen bananas are actually sweeter and work great in this recipe.

How ripe do the bananas need to be?

The spottier the better. You want soft, brown-spotted bananas. If yours are not ripe yet, bake them unpeeled on a baking sheet at 350 degrees for 20 to 25 minutes.

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Find Everything I Used in One Place

All of the tools and products I used for this recipe are saved in my Amazon storefront. You will find the thermometer, the parchment inserts, the disposable loaf pans and more in my Sourdough Baking Essentials list.

Sourdough Baking Essentials

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