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This banana bread syrup is the real deal. Not the faint, watered down version you get from most recipes that use one banana and call it a day. This one is made with two overripe bananas cooked in brown butter with warm spices, simmered low and slow until the flavor concentrates, and finished with banana extract off the heat so the banana flavor actually sticks. It tastes like a warm slice of banana bread in every sip.
I spent a lot of time testing this because most homemade banana syrups just don’t deliver. Fresh banana loses so much flavor when it cooks and then gets strained out. The fix is layering the banana flavor from three different directions: the caramelized real banana, the brown butter base, and a hit of pure banana extract stirred in at the very end while the syrup is still warm. That last step is non-negotiable for that banan flavor you get at coffee shops!
Use it in lattes, pour it over iced coffee, stir it into cold brew, or blend it into a banana bread cold foam. Kyle tried it in oat milk and hasn’t stopped making it since. If you’re someone who loves banana bread but has never thought to put that flavor in your coffee, this is your sign.
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I’ve been making homemade coffee syrups for years now and this banana bread syrup has been one of the most requested flavors from my readers.
I tested this recipe more times than I’d like to admit. One banana wasn’t enough. Skipping the brown butter made it taste flat. Adding the banana extract while the syrup was still on the heat cooked off the flavor completely. Every single step in this recipe exists because I tried it the wrong way first. Trust the process on this one!
Table of Contents
Why This Banana Bread Syrup Actually Works
Most banana syrup recipes out there use one banana, simmer it for a few minutes, strain it, and hope for the best. The result is a mildly sweet syrup with barely any banana flavor. Here’s what makes this version different:
- Two overripe bananas instead of one. More banana means more flavor that survives the cooking and straining process. Overripe bananas have significantly higher natural sugar content and a more concentrated banana taste than yellow ones.
- Brown butter as the base. This is what transforms the syrup from plain banana into banana bread. The nutty, toasted notes from the brown butter replicate that baked warmth you get from an actual loaf of banana bread.
- Banana extract added after straining. Fresh banana loses most of its aroma and flavor during cooking. Adding pure banana extract to the warm (not hot) strained syrup locks in a strong, true banana flavor that stays in every spoonful.
- A proper steep. Letting the cooked banana solids sit in the syrup for 15 minutes before straining allows a significant amount of additional flavor to transfer. Don’t skip this.
Ingredients You’ll Need
Here’s a quick breakdown of what goes into this banana bread syrup and why each ingredient matters:
- Unsalted butter is browned first to create that signature nutty, baked flavor. This is the backbone of the banana bread taste.
- Overripe bananas (two of them) bring the natural banana sweetness and flavor. The spottier and softer, the better. Yellow bananas will give you a weak, bland result.
- Dark brown sugar adds molasses depth that echoes the warm, caramelized quality of real banana bread.
- Pure maple syrup adds a layer of natural sweetness and rounds out the flavor without making it one-note.
- Cinnamon and nutmeg are the warm spices that tie the whole thing together. Freshly grated nutmeg makes a noticeable difference if you have it.
- Fine sea salt balances the sweetness and amplifies the banana and spice flavors.
- Vanilla extract adds warmth and depth, just like it does in banana bread batter.
- Banana extract is the secret weapon. Added off-heat after straining, this is what gives the syrup its strong, unmistakable banana flavor. Use pure banana extract, not imitation.
How to Make Banana Bread Syrup
This syrup comes together in about 40 minutes total, including the steep time. Here’s the step-by-step:
- Brown the butter. Melt one tablespoon of unsalted butter in a small saucepan over medium heat. Swirl occasionally until it turns golden brown and smells nutty, about 2 to 3 minutes. Watch it closely because it goes from golden to burnt fast.
- Cook the bananas. Add the mashed overripe bananas directly to the brown butter. Stir and cook for 3 to 4 minutes, pressing the banana into the pan. You want it to caramelize slightly. This concentrates the flavor and removes the raw banana taste.
- Simmer. Add the water, dark brown sugar, maple syrup, cinnamon, nutmeg, and sea salt. Stir well and bring to a gentle simmer over medium heat. Reduce to low and cook for 12 to 15 minutes, stirring occasionally, until the syrup thickens slightly. The longer it simmers, the more concentrated the banana flavor becomes.
- Steep. Remove from heat and let the mixture sit undisturbed for 15 minutes. This is where a huge amount of flavor transfers from the banana solids into the syrup. Don’t skip this.
- Strain and finish. Pour through a fine mesh strainer into a clean glass jar, pressing the banana solids gently with the back of a spoon. While the syrup is still warm but not hot, stir in the vanilla extract and banana extract. Taste it. If you want more banana punch, add another quarter teaspoon of banana extract.
- Cool and store. Let cool completely before sealing. Refrigerate for up to 2 weeks. Shake before each use. Start with 1.5 to 2 tablespoons per drink and adjust to taste.
Tips for the Best Banana Bread Syrup
- Use overripe bananas only. Black-spotted, soft bananas have the highest natural sugar and the most concentrated flavor. Yellow bananas will give you a faint, watery result. Not ripe enough? Bake unpeeled bananas at 300°F for 15 to 20 minutes until the skins turn completely black.
- Don’t throw away the strained solids. The cooked banana mixture is sweet, spiced, and packed with brown butter flavor. Fold it into banana bread batter, blend it into a smoothie, or spoon it over ice cream or oatmeal.
- Sugar-free option. Substitute the dark brown sugar with brown sugar erythritol at the same ratio. Use a sugar-free maple syrup, or replace with a quarter teaspoon of maple extract dissolved in 3 tablespoons of water.
How to Use Banana Bread Syrup
This banana bread syrup works in just about any coffee drink you can think of. Add 1.5 to 2 tablespoons (you might need more depending on how large your drink is) to a hot latte for a banana bread latte that rivals any coffee shop. Stir it into iced coffee or cold brew for a chilled version. It pairs incredibly well with oat milk. For a banana bread cold foam, blend 2 tablespoons of this syrup with 3 tablespoons of heavy cream and 2 tablespoons of oat milk until thick and frothy, then spoon it over iced coffee.
Beyond coffee, you can drizzle it over pancakes and waffles, stir it into oatmeal, add it to smoothies, or use it as a topping for ice cream. It’s basically liquid banana bread and it goes with everything.
How to Store Banana Bread Syrup
Keep this syrup in a sealed glass jar or squeeze bottle in the refrigerator for up to 2 weeks. The syrup will settle and thicken as it cools, which is totally normal. Just give it a good shake before each use. If it gets too thick in the fridge, run the jar under warm water for a minute to loosen it up.
Frequently Asked Questions
You can, but the syrup won’t have nearly as much banana flavor. Overripe bananas have significantly higher sugar content and a more concentrated taste. If your bananas aren’t ripe enough, bake them unpeeled at 300°F for 15 to 20 minutes until the skins turn completely black.
I really don’t recommend it. Fresh banana loses most of its flavor during the cooking and straining process. The banana extract added at the end is what gives this syrup a true, strong banana bread flavor. Without it, the syrup will taste more like a spiced brown sugar syrup than a banana one.
Yes! It dissolves easily in cold drinks because it’s already a liquid syrup. Stir in 1.5 to 2 tablespoons and adjust to taste. It’s especially good with oat milk iced lattes.
Yes. Substitute the dark brown sugar with brown sugar erythritol at the same ratio. Use a sugar-free maple syrup, or replace with a quarter teaspoon of maple extract dissolved in 3 tablespoons of water. The texture may be slightly thinner but the flavor will still be great.
It keeps for up to 2 weeks in the refrigerator stored in a sealed glass jar or squeeze bottle. Shake before each use as the syrup naturally settles.
Don’t toss them! The strained banana mixture is sweet, spiced, and full of brown butter flavor. Fold it into banana bread batter, blend it into smoothies, stir it into oatmeal, or spoon it over ice cream.
Absolutely. Double all the ingredients and use a slightly larger saucepan. The simmer time may increase by a few minutes. Just make sure the syrup thickens slightly before removing from heat.
Banana Bread Coffee Syrup
Ingredients
- 1 tablespoon unsalted butter
- 2 overripe bananas mashed (the spottier the better)
- 1 cup water
- ¾ cup dark brown sugar packed
- 3 tablespoons pure maple syrup
- ¾ teaspoon ground cinnamon
- ¼ teaspoon ground nutmeg freshly grated if possible
- ½ teaspoon fine sea salt
- 1 teaspoon pure vanilla extract
- ½ teaspoon pure banana extract
Instructions
- Melt the butter in a small saucepan over medium heat. Cook, swirling occasionally, until the butter turns golden brown and smells nutty, about 2 to 3 minutes. Watch it closely; it goes from golden to burnt quickly. Do not skip this step. The brown butter is what makes this taste like banana bread rather than plain banana syrup.1 tablespoon unsalted butter
- Add the mashed bananas directly to the brown butter. Stir and cook for 3 to 4 minutes, pressing the banana into the pan as it cooks. You want it to caramelize slightly, this concentrates the flavor and removes the raw banana taste.2 overripe bananas
- Add the water, dark brown sugar, maple syrup, cinnamon, nutmeg, and sea salt. Stir well to combine and bring to a gentle simmer over medium heat.1 cup water, ¾ cup dark brown sugar, 3 tablespoons pure maple syrup, ¾ teaspoon ground cinnamon, ¼ teaspoon ground nutmeg, ½ teaspoon fine sea salt
- Once simmering, reduce heat to low and cook for 12 to 15 minutes, stirring occasionally, until the syrup has thickened slightly. Do not rush this step, the longer it simmers, the more concentrated the banana flavor becomes.
- Remove from heat and let the mixture steep, undisturbed, for 15 minutes. This is where a significant amount of flavor transfers from the banana solids into the syrup. Do not skip the steep.
- Pour through a fine mesh strainer into a clean glass jar, pressing the banana solids gently with the back of a spoon to extract as much syrup as possible. While the syrup is still warm but not hot, stir in the vanilla extract and banana extract. Taste, if you want more banana punch, add another ¼ teaspoon of banana extract.1 teaspoon pure vanilla extract, ½ teaspoon pure banana extract
- Let cool completely before sealing. Refrigerate for up to 2 weeks. Shake before each use as the syrup settles. Start with 1½ to 2 tablespoons per drink and adjust to taste.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
More Homemade Coffee Syrups You’ll Love
If you loved this banana bread syrup, you need to check out my other homemade coffee syrup recipes! I have a whole collection of flavors that are so much better than anything store-bought:
Check out all of my homemade coffee syrup recipes here!
If you make this banana bread syrup, I’d love to hear about it! Leave a comment below and let me know how you used it, or tag me on Instagram @chahinez_tbt so I can see your creations. And if you haven’t already, make sure to sign up for my email list so you never miss a new recipe!
