Chocolate Brownie Mix Banana Bread Recipe: Fudgy Batter Magic

By Ashton · Updated October 14, 2026
5.01 reviewServes 10 slices
Banana Bread and Brownies got married and had a baby...

Let’s talk about Chocolate Brownie Mix Banana Bread. If you’re a chocolate lover and a banana bread fan (hi, same), you are going to lose it over this delicious combination. We’ll get to that.

This pregnancy has been so different than my last one in lots of ways. But nothing has been stranger than my cravings…. or lack thereof.

Before I got pregnant this time around, I told my husband, “I just can’t wait for pregnancy cravings! Because nothing tastes better than eating a pregnancy craving.”

But as this pregnancy has turned out, nothing could be more opposite of the truth. Last time, I’d crave something for about 3 or 4 weeks at a time, and it was the ONLY thing I wanted to eat. I remember, towards the end, practically living on VitaTop chocolate muffins and a big mug of cocoa (obviously my body was trying to tell me something there….).

๐ŸŒ๐ŸŒ๐ŸŒ CHECK OUT more of our favorite Banana Bread Recipes ๐ŸŒ๐ŸŒ๐ŸŒ

Anyway. This time around, my cravings have been few and far between. And they usually last about a day. Because as soon as I try to satisfy them, my taste buds change their mind. Seriously. If I’m craving pizza, I’ll order one. But before it’s even been delivered, I start thinking I’d rather eat something else. And invariably, when we go out to eat, I decide I’d much rather be eating the food on anyone else’s plate rather than what I ordered.

Eating was seriously the part of pregnancy I was looking forward to the most, and it’s so not even fun this time! Such a bummer.

What’s not a bummer? This Chocolate Brownie Mix Banana Bread. Brownie mix has actually been an on-again-off-again craving for me this pregnancy, so I’ve made quite a few brownie mix recipes I’ll be sharing over the next couple of months! Including these amazing Brownie Mix Cookies. Really, you’ve got to check them out. Even my fickle preggo appetite loved those hot and fresh out of the oven!

Why This Chocolate Brownie Mix Banana Bread Is a Great Recipe for Banana Bread Brownie Lovers

Okay, can we talk about how this might be the easiest recipe in the whole wide world of banana bread brownies? It uses simple ingredients you probably already have, plus one box of brownie mix to get that rich, fudgy brownie flavor without any fuss. No electric mixer or stand mixer required, though a hand mixer definitely makes quick work of it if you’ve got one sitting around. This is such a great way to combine two of the best desserts on the planet into one moist banana bread situation that tastes like chocolate brownies had a baby with your grandma’s soft classic banana bread. The natural sweetness of overripe bananas balances out all that chocolatey goodness of brownies, and honestly? It’s just a perfect balance of flavor.

Banana Bread and Brownies got married and had a baby...

But back to the bread… I was so thrilled this recipe worked out! It was totally experimental, but it turned out perfectly on the first try. With just a quick switch-out to my Cake Mix Banana Bread, I had a fudgy and decadent brownie version! And oh em gee — is this banana bread fudgy or what?! It’s fudgy. Really, really, brownie-like fudgy. But banana bread at the same time. Which is, of course, a match made in heaven! I hope you love this as much as we did ๐Ÿ™‚

Step-by-Step Summary: Making the Banana Bread Batter and Brownie Layer

Here’s the step-by-step summary, no trained pastry chef skills required! In a medium bowl, whisk your dry ingredients โ€” purpose flour, cocoa powder, and baking powder. In a separate bowl, mix your wet ingredients: melted butter or vegetable oil, egg yolk, pure vanilla extract, and that glorious mashed banana. The most important thing here is using properly overripe bananas with plenty of brown spots, since that’s where all the natural sweetness and real banana flavor comes from (if your bananas aren’t there yet, check out our guide on how to quickly ripen bananas). Combine wet and dry just until there are no dry streaks of flour left, then fold in chocolate chips for extra chocolatey banana brownies magic.

Pour about two-thirds of the banana batter into the bottom of the prepared baking pan โ€” a greased square pan lined with parchment paper works beautifully. Spread your brownie mix (prepared separately, cooked only partially, almost like a thick base batter) over the banana bread layers, then dollop the rest of the brownie batter and banana batter on top, swirling gently with a butter knife. This layering is what gives you that gorgeous marbled look and the true taste of banana bread peeking through the rich fudgy brownie swirl.

Baking Tips for Moist Crumbs Every Single Time

Bake at a moderate, lower temperature rather than cranking the oven on medium heat on your stovetop (ha โ€” just making sure you’re paying attention!). A lower, steady oven temp helps the brownie layer cook through without drying out the moist banana bread surrounding it. Bake time will vary depending on your inch pan size, but you’re looking for a golden brown top and moist crumbs clinging to a toothpick, not wet batter. Majority of the time, this bread needs just a touch longer than a normal banana bread recipe because of that dense brownie layer. Let it cool completely on a wire rack before slicing, otherwise you’ll end up with a gooey (still delicious, but messy) situation.

Storage, Variations, and Other Banana Bread Ideas

Store leftovers in an airtight container at room temperature for a few days, or pop slices in a plastic bag wrapped in aluminum foil for the freezer. This is such a fun idea for using up those sad, forgotten bananas turning brown on your counter instead of normal ripe watermelons or other fresh produce nobody’s touching. If you’re already a sour cream banana bread devotee, try swapping in a few tablespoons of sour cream here for even more moisture. Not quite ready to commit to full brownie territory? Ease in with chocolate chip banana bread, or go full dessert mode with banana bread with cream cheese frosting. Fans of nutty, buttery flavor should also check out brown butter blondies and brown butter brownies โ€” basically cousins of this recipe in the best way. We’re also big fans of simple banana bars for parties where little guys (and big guys, let’s be honest) need a treat.

Frequently Asked Questions About Chocolate Brownie Mix Banana Bread

Do I need exact recipe quantities for this to work? Honestly, banana bread is forgiving, but I’d stick close to the measurements the first time, especially for the amount of sweet stuff, so you don’t end up with brownies- recipe success depends on balance! Can I use nonstick baking spray instead of parchment? Sure, though parchment paper makes cleanup and removal foolproof. This has become one of our most frequent guests at parties, and after seeing it trend in a TikTok – make banana bread brownie era, I’m not surprised it caught on. If you love this, you’ll want to dig into our whole world of banana bread brownies and other banana-based treats โ€” it’s basically its own delicious treat category at this point, and I, for one, am here for it. ๐Ÿซ๐ŸŒ

Banana Bread and Brownies got married and had a baby...

Brownie Mix Banana Bread

Yield: 10 slices
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Fudgy and decadent, this bread is a prefect marriage between brownie and banana bread!

Ingredients

  • 18.3 ounce brownie mix (just the dry mix, not the other ingredients on the box)
  • 3 eggs
  • 1/3 cup canola or vegetable oil
  • 1 cup mashed bananas (about 3 medium bananas)
  • 1 cup miniature chocolate chips
  • optional: powdered sugar for dusting

Instructions

Preheat oven to 350ºF. Line a 9x5x3 loaf pan with foil or parchment paper and lightly spray with a non-stick cooking spray.

Mix together all ingredients (reserving the chocolate chips) until batter forms. Fold in the chocolate chips.

Pour batter into prepared loaf pan.

Bake for 50-60 minutes or until a toothpick inserted comes out mostly clean. If you need to bake it beyond 60 minutes, cover it with tin foil to prevent burning the top.

Let cool for 10 minutes before removing from loaf pan.

Store in airtight container at room temperature for up to one week.

 

Notes

You could also bake as muffins. Adjust baking time to 20 minutes.

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