This homemade peanut butter syrup is an easy way to add real peanut butter flavor to coffee, iced lattes, or desserts. It takes just three ingredients and a few minutes on the stove.
My favorite way to use it is with homemade toasted marshmallow syrup in a peanut butter marshmallow iced latte, inspired by a Fluffernutter.
Ingredients
See the recipe card for exact amounts.
- Sugar and water: the two basic ingredients for any simple syrup. Granulated white sugar sweetens and gives the syrup a smooth, pourable consistency.
- Peanut butter: smooth peanut butter gives the syrup its peanut butter flavor and is easiest to mix.
Tips for Making Peanut Butter Syrup
- Use smooth peanut butter. You don’t need little chunks of peanut in the syrup.
- Whisk continuously after adding the peanut butter. This helps it fully incorporate into the hot syrup.
- Don’t heat it for longer than necessary. Once the peanut butter is smooth and incorporated, it’s ready.
- Let it cool before storing. The syrup will thicken slightly as it cools.
Instructions
- Add the water and sugar to a medium saucepan.
- Heat over medium-high heat, whisking often, until the mixture comes to a boil and the sugar has dissolved.
- Add the peanut butter and whisk continuously for another 1–2 minutes, until the peanut butter is completely melted into the syrup and the mixture is smooth.
- Remove from the heat and let the syrup cool.
- Pour it into a clean jar, add a lid, and refrigerate.
Storage
Store the cooled syrup in a clean, airtight jar in the refrigerator.
If the peanut butter settles slightly, give the syrup a good stir before using.
How to Use Peanut Butter Syrup
Try this syrup in:
- Iced coffee
- Hot lattes
- Fluffernutter Iced Coffee (coming soon)
- Shaken espresso drinks
- Milkshakes
- Hot chocolate
You can also drizzle it over ice cream or use it to add peanut butter flavor to desserts like brownies.
For coffee, start with 1–2 tablespoons per drink, then adjust to your taste.
FAQs
Peanut butter pairs particularly well with toasted marshmallow, chocolate, banana, vanilla, caramel, and coffee.
More Simple Syrup Recipes
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Peanut Butter Syrup
Ingredients
- 1 cup granulated white sugar
- 1 cup water
- ½ cup smooth peanut butter
Instructions
- In a medium saucepan, combine the sugar and water.
- Heat over medium-high heat, whisking often, until the mixture comes to a boil and the sugar has dissolved.
- Add the peanut butter and whisk constantly for 1–2 minutes, until smooth and fully combined.
- Remove from the heat and allow to cool.
- Pour into a clean jar, add a lid, and store in the refrigerator.
Video
Notes
Nutritional information is an estimate. Values vary based on products used. Read our full Nutrition Disclaimer.
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