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Mar 11 2013

Peanut Butter Simple Syrup

Find the recipe card at the end of the post. Make sure to read the content as it contains chef tips, substitution options, and answers to FAQs to help you succeed the first time around!

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This nutty, velvety syrup is the ultimate hack for transforming your standard drinks into gourmet treats. With just three pantry staples—water, sugar, and creamy peanut butter—you can whip up a batch in under ten minutes.

I know, you’re probably wondering, “Why in the world would I ever need Peanut Butter Simple Syrup???”

Trust me, you’ll thank me in the next post! Most of you know to use simple syrups in drinks, i.e., mojitos.  However, simple syrups are not just for drinks.

Next time you make a cake, muffin, cookie, sweet bread, or any dessert, really, brush the top with a flavor-simple syrup.  It’s insanely good!

Peanutbuttersimplesyrup3

Making this stuff couldn’t be any easier…

Peanutbuttersimplesyrup2

Literally put the sugar and water in a pan.  When the sugar is dissolved, and it starts to bubble, add the peanut butter and cook until slightly thickened. Yeah.. THAT simple. 

Peanutbuttersimplesyrup1

Ways to use Peanut Butter Simple Syrup

  1. Elevated Coffee: Stir 1–2 tablespoons into a hot latte or cold brew. It tastes exactly like a liquid peanut butter cup when paired with a splash of chocolate mocha sauce.
  2. Milkshakes & Smoothies: Drizzle it into a vanilla or banana milkshake for an instant flavor upgrade without the clumps of actual peanut butter.
  3. Breakfast Topping: Use it as a thinner, pourable alternative to maple syrup on waffles, pancakes, or French toast.
  4. Dessert Cocktails: Shake it into an Espresso Martini or a “Peanut Butter & Jelly” Old Fashioned (using bourbon and a splash of cranberry or raspberry liqueur).
  5. Ice Cream Sundaes: Pour it warm over vanilla bean ice cream or frozen yogurt for a rich, salty-sweet finish.
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Peanut Butter Simple Syrup

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5 from 12 reviews

This nutty, velvety syrup is the ultimate hack for transforming your standard drinks into gourmet treats. With just three pantry staples—water, sugar, and creamy peanut butter- you can whip up a batch in under ten minutes.

  • Author: The Kitchen Whisperer
  • Prep Time: 5 minutes
  • Cook Time: 15 minutes
  • Total Time: 20 minutes
  • Yield: 2 cups

Ingredients

  • 1 cup white sugar
  • 1 cup water
  • 3/4 cup creamy peanut butter

Instructions

  1. In a medium heavy-bottomed pan over medium heat, add the sugar and water.
  2. Stir occasionally or until the sugar is all dissolved.
  3. Once dissolved, add in the peanut butter and stir well.
  4. Bring to a rolling boil, stirring every so often. Keep an eye on it as it has the potential to bubble over. The whole process should take 10-15 minutes.
  5. Transfer to a jar and allow to cool completely before covering and refrigerating for up to 2 weeks.

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Make it a meal!

Pairs Perfectly With:

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40 responses

  1. Jeri brown
    May 4, 2026

    How long is it good for in the jar?

    Reply
    1. Lori
      May 4, 2026

      Hi Jeri! I just updated the post – about 2 weeks in the fridge

      Reply
  2. Ali
    April 11, 2025

    I would love to try this – just curious what kind of peanut butter you used (more of the “peanuts only” organic style or the sweeter JIF-style)?

    Reply
    1. Lori
      April 11, 2025

      Hi Ali!

      I tend to buy plain ol’ Jif.

      Best Kitchen Wishes!

      Reply
  3. Martie Wiley
    October 31, 2024

    Saw a recipe for a peanuts butter cup martini. It called for peanut butter simple syrup. Would this work or would it solidify in the cold liquid?

    Reply
    1. Lori
      October 31, 2024

      It won’t get hard per se but I can see it getting thicker..

      Best Kitchen Wishes!

      Reply
  4. Sara
    May 22, 2022

    I made this and put it in my iced coffee and it tasted JUST like the Dunkin donuts peanut butter cup 😲 awesome!!

    Reply
    1. Shannon Kobayashi
      April 13, 2025

      thank you ! I was looking for a peanut butter syrup for my coffee and your review was super helpful!

      Reply
      1. Lori
        April 13, 2025

        You are most welcome!

        Best Kitchen Wishes!

        Reply
  5. Valerie
    October 28, 2021

    This looks amazing – going to try it next week to brush on my sons chocolate cake before frosting it.

    Reply
  6. Jan
    February 18, 2021

    You say a glass lidded jar . Do you mean the lid needs to glass as well as the jar?

    Reply
    1. TKWAdmin
      February 18, 2021

      Hi Jan,

      No, I meant like a mason glass jar. Great question! I’ll clarify it in the post!

      Best Kitchen Wishes!

      Reply
  7. Judy McGill
    June 29, 2020

    My grandmother, Lottie Vance Daniels, of Avery Co. N. C., made this for us. We put it on a hot, buttered, homemade biscuit. This was a real fine breakfast for us kids. All us girls knew the recipe, and have shared with our grands.

    Reply
  8. Susann
    March 2, 2020

    I’m curious how long it is good for.

    Reply
  9. Lisa Lu
    June 12, 2019

    I haven’t made, but it looks amazing! Would this work as a sauce over ice cream sundaes? A lot of recipes I found for pb sundae sauce used corn syrup or honey & I don’t like the taste of either.

    Reply
  10. Lauren Erickson
    December 20, 2018

    Delicious!!! Thank you! ❤

    Reply
    1. TKWAdmin
      December 24, 2018

      You are most welcome 🙂

      Merry Christmas and best Kitchen Wishes!

      Reply
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