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    Home » Recipes » Single Serve Cookies

    Single Serve Peanut Butter Cookie (Small Batch)

    Published: Jul 26, 2025 by Kathleen Hansen · This post may contain affiliate links · Leave a Comment

    Jump to Recipe·Print Recipe

    This Single Serve Peanut Butter Cookie is tender and chewy, packed with peanut butter flavor AND mixed up in one bowl by hand, no mixer needed. It uses under 10 simple ingredients, that you likely already have on hand. The recipe makes just two large cookies that are perfect to satisfy your cravings without all the leftovers.

    Single serve peanut butter cookie on a a plate.
    Jump to:
    • ⭐Why I Love It:
    • 🥘Ingredients
    • 🔪How To Make a Single Serve Peanut Butter Cookie
    • 💭Recipe Tips
    • 👩‍🍳Recipe FAQs
    • 🍫Related Single Serve Recipes...
    • Recipe
    • Reviews

    ⭐Why I Love It:

    • No Mixer Required - Mix up easily by hand in one bowl.
    • Creamy Peanut Butter - Not only adds a rich, nutty flavor, but also gives it a chewy texture.
    • Super Small Batch Recipe - Now you can satisfy your peanut butter cookie craving, without having to make an entire batch! Other favorite single serve cookie recipes worth trying is this Single Serve Chocolate Chip Cookie, Single Serve Coconut Cookie, and Single Serve Double Chocolate Cookie.

    🥘Ingredients

    Peanut butter cookie ingredients in small glass prep bowls.
    • Creamy Peanut Butter - I do not recommend swapping in chunky peanut butter. Because the moisture level of peanut butter can vary brand to brand, we'll adjust the amount of flour added to reach the right consistency, I detail this in the recipe so you'll get great results!
    • Unsalted Butter - Softened to room temperature! As long as your butter is softened, then you can easily mix up the dough by hand. If you use salted butter, just reduce the amount of salt by half. When measuring the butter, I prefer to cut from the middle of the stick since the tablespoon markers at the ends of the stick can be off. For a small recipe, it's extra important to be accurate with measurements.
    • Brown Sugar - When measuring brown sugar, make sure to pack it into the measuring cup. You can use either light brown sugar or dark brown sugar.
    • Egg Yolk - Using only the egg yolk helps keep the recipe super small and it also gives the cookies their chewy/fudgy/almost gooey center. If you want to use up the leftover egg white, you can make this Single Serve White Cake or Single Serve Chocolate Cake recipe!
    • Vanilla Extract - For flavor!
    • All-Purpose Flour - When measuring flour, make sure to use the 'spoon and level' method. This is where you spoon the flour into the measuring cup and then level off the top. Instead of dipping the measuring cup directly into the flour bin which can lead to over measuring.
    • Baking Soda - This is the leavener for the cookie to help them rise.
    • Kosher Salt - I like the Diamond Kosher Salt. A small amount of salt is so important to balance the sweetness in cookies. If you use table salt, then I would cut the amount by half.
    • White Granulated Sugar - Optional For Rolling

    See the recipe card for full information on ingredients and quantities.

    🔪How To Make a Single Serve Peanut Butter Cookie

    This recipe for Single Serve Peanut Butter Cookies could not be any easier! Just mix up the dough in one bowl, pop in the fridge while the oven preheats, then bake on one sheet.

    Peanut butter mixed with butter and sugar in a glass bowl.

    Photo 1 - In a medium bowl, stir together the softened butter, brown sugar, and peanut butter until combined (I like use a rubber spatula to ‘smoosh’ the mixture against the side of the bowl to really cream things together).

    Small batch of peanut butter cookie dough in a bowl.

    Photo 2 - Mix in the egg yolk and vanilla extract until well combined. Stir in flour, baking soda, and salt until well combined.

    Two peanut butter cookie dough balls on a small cookie sheet.

    Photo 3 - Pop the dough in the fridge for about 15 minutes while the oven finishes preheating. Roll the dough into two balls and roll the balls in extra white granulated sugar (this is technically optional but highly recommended!) and place on the lined baking sheet.

    Two baked peanut butter cookies on a sheet pan.

    Photo 4 - Bake until the edges are firm and set and the center is just set. Allow to cool for at least 10 minutes on the baking sheet so the cookies can finish cooking on the warm sheet. Enjoy!

    💭Recipe Tips

    • Peanut Butter Consistency Varies - You'll need to use creamy peanut butter for this cookie recipe but the moisture level varies brand to brand. Because of this, you'll start with adding some of the flour then add the last tablespoon slowly until the right consistency is reached.
    • Softened Butter - In order to mix up the cookie dough by hand, your butter needs to be softened to room temperature. If you're in a pinch you can microwave for just a couple of seconds, but be careful not to melt it!
    • Allow to Cool on Baking Sheet - Letting the single serve cookies cool on the baking sheet for 10 minutes lets the cookies finish baking on the warm baking sheet so they set up.
    • Don't Over Bake - The cookies will finish setting up on the baking sheet so in order to have the gooey (but not raw) insides be sure not to over bake them. The egg yolk helps give the center a gooey/fudgy interior so know that as long as they're set around the edges, golden on the bottom and golden brown/just set on top then they are baked 🙂
    • Use 'Spoon and Level' Method When Measuring Flour - When measuring flour, make sure to use the 'spoon and level' method. This is where you spoon the flour into the measuring cup and then level off the top. Instead of dipping the measuring cup directly into the flour bin which can lead to over measuring.
    Single serve peanut butter cookie broken in half.

    👩‍🍳Recipe FAQs

    Why does the recipe use only an egg yolk

    Using only the egg yolk helps keep the single serve cookie recipe super small and it also gives the cookies their chewy/fudgy/almost gooey center. I have an entire collection of recipes using just 1 egg white that you can use the leftover egg white in.

    What is the 'Spoon and Level' method?

    The spoon and level method is best for measuring flour because it reduces the risk of over measuring. Start by fluffing up the flour int the container then use a spoon to spoon it into the measuring cup and use a knife to level off the top. This is much more accurate than scooping the flour directly from the container with the measuring cup.

    🍫Related Single Serve Recipes...

    • Single serve confetti cake cut in half with lots of rainbow sprinkles.
      Single Serve Confetti Cake (Funfetti)
    • Single serve cinnamon swirl cake cut in half to show cinnamon sugar center.
      Single Serve Cinnamon Swirl Cake (Small Batch)
    • Single serve chocolate chip muffin on a plate.
      Single Serve Chocolate Chip Muffins (Makes Two)
    • Single serve blueberry muffins with fresh blueberries.
      Single Serve Blueberry Muffins (Fresh or Frozen Blueberries)

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    Print

    Recipe

    Single Serve Peanut Butter Cookie (Small Batch)

    Single Serve Peanut Butter Cookie on a plate.
    Print Recipe

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    This Single Serve Peanut Butter Cookie is tender and chewy, packed with peanut butter flavor AND mixed up in one bowl by hand, no mixer needed. It uses under 10 simple ingredients that you likely already have on hand. The recipe makes just two large cookies that are perfect to satisfy your cravings without all the leftovers.

    • Author: Kathleen Hansen
    • Prep Time: 10 minutes
    • Cook Time: 11 minutes
    • Total Time: 45 minutes
    • Yield: 2 large cookies
    • Category: Dessert, Single Serve, Cookies
    • Method: Oven
    • Cuisine: American

    Ingredients

    • 1 tablespoon unsalted butter, softened to room temperature
    • 3 tablespoons creamy peanut butter
    • ¼ cup packed light brown sugar
    • ¼ teaspoon vanilla extract
    • 1 egg yolk
    • 3-4 tablespoons all-purpose flour
    • ⅛ teaspoon kosher salt
    • ⅛ teaspoon baking soda
    • White Granulated Sugar, optional for rolling

    Instructions

    1. Prep - Get the oven preheating to 350 degrees F. Line a baking sheet with parchment paper.
    2. Mix Butter and Sugar - In a medium bowl, stir together the softened butter, brown sugar, and peanut butter until combined (I like use a rubber spatula to ‘smoosh’ the mixture against the side of the bowl to really cream things together).
    3. Add Yolk and Extract  - Mix in the egg yolk and vanilla extract until well combined. 
    4. Add Dry Ingredients - Stir in flour, baking soda, and salt until well combined. Start with 3 tablespoons of flour then add the additional 1 tablespoon, if needed, to get a thick cookie dough. The reason for the variation is different peanut butter brands can be thicker or runnier. I typically always need the full 4 tablespoons (¼ cup) of flour.
    5. Chill Dough - I like to pop the dough in the fridge for about 15 minutes while the oven finishes preheating.
    6. Roll into Balls - Roll the dough into two balls and roll the balls in extra white granulated sugar (this is technically optional but highly recommended!) and place on the lined baking sheet.
    7. Bake - Bake for 11–14 minutes - until the edges are firm and set and the centers are just set. I like my cookies to have a gooey (not raw) center so they are extra tender, but you can adjust to your preferences.
    8. Cool on Baking Sheet - Allow the Cookes to cool on the baking sheet for about 10 minutes so they will finish cooking on the sheet and set up the final amount. Enjoy!

    Nutrition

    • Serving Size: 1 cookie
    • Calories: 361
    • Sugar: 26.9 g
    • Sodium: 270.5 mg
    • Fat: 20.5 g
    • Carbohydrates: 39.2 g
    • Fiber: 1.5 g
    • Protein: 8 g
    • Cholesterol: 107.5 mg

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    Hi! I'm Kathleen and welcome! My favorite place to be has always been in the kitchen and I love creating recipes that are easy and approachable. Simple ingredients and easy-to-follow instructions!

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    Single peanut butter cookie on a baking sheet.
    Single peanut butter cookie on a plate.
    Peanut butter cookie broken in half.
    Single serve peanut butter cookie broken in half.
     

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