Peanut Butter No Bake Cookie

Featured in Sweet Moments of Joy.

These peanut butter no bake treats blend quick-cook oats with a smooth peanut butter mixture. The process involves boiling butter, sugar, and milk, then combining with peanut butter and vanilla before mixing into oats. The batter is scooped onto wax paper and allowed to cool, resulting in chewy, flavorful bites perfect for snacktime. Cooling on the countertop prior to refrigeration prevents unwanted texture changes. A simple, fuss-free way to enjoy a sweet, nutty delight without turning on the oven.

Barbara Chef
Updated on Tue, 06 Jan 2026 17:14:35 GMT
A stack of brown cookies on a black cutting board. Pin it
A stack of brown cookies on a black cutting board. | gracefulflavors.com

This peanut butter no-bake cookie recipe is one of those quick pleasures that come together effortlessly when you want something sweet without turning on the oven. It blends the creamy, rich flavor of peanut butter with hearty oats for a satisfying treat that’s perfect for any occasion. Whether you’re feeding a crowd or just looking for a reliable snack, these cookies always hit the spot.

I first made these on a lazy Sunday afternoon and they became an immediate family favorite. My kids especially love helping me drop the spoonfuls onto the wax paper.

Ingredients

  • Three cups quick-cook oats: they hold the cookie’s shape and provide a chewy texture, use old-fashioned oats for a heftier bite
  • Quarter teaspoon salt: balances sweetness and elevates the flavors
  • Half cup butter: gives richness, use unsalted for better control over saltiness
  • Two cups sugar: creates the sweet base, granulated sugar works best here
  • Half cup milk: helps dissolve the sugar and butter; whole milk adds creaminess
  • One cup peanut butter: the star ingredient, choose natural or creamy based on your texture preference
  • Two teaspoons vanilla: adds warmth and complexity, pure vanilla extract is always best

Step-by-Step Instructions

Sift and Mix the Dry Ingredients:
In a large bowl, stir together the oats and salt to evenly distribute the salt and prepare for coating with the peanut butter mix.
Heat the Sugar Mixture:
Place butter sugar and milk in a small saucepan and whisk constantly over medium-high heat. Bring to a rolling boil and then let it boil steadily for about a minute to achieve the right consistency.
Combine Peanut Butter and Vanilla:
Remove the saucepan from heat and quickly whisk in peanut butter and vanilla until smooth and fully incorporated.
Combine Wet and Dry Ingredients:
Pour the hot peanut butter mixture over the oats and stir thoroughly until every oat is coated and the mixture is sticky but manageable.
Portion and Cool the Cookies:
Line a baking sheet with wax paper. Using a medium cookie scoop or spoon, drop the mixture into mounds evenly spaced on the sheet. Let them cool completely on the countertop to set before transferring to the refrigerator. This resting step helps them firm up properly.

I love how the peanut butter flavor comes through in every bite; it’s like a nostalgic hug on a plate. One Valentine's Day, I swapped the vanilla for almond extract, and it brought a new twist that became a hit at the party.

Storage Tips

Once your cookies have cooled and set, store them in an airtight container in the refrigerator to keep them from getting sticky. They stay fresh for up to a week this way. If you want to keep them longer, freezing them in a sealed container works beautifully; just thaw briefly before serving.

Ingredient Substitutions

For a vegan version, swap the butter with coconut oil and use a plant-based milk like almond or oat milk. You can also replace peanut butter with almond butter or sunflower seed butter if allergies are a concern, though it will slightly change the flavor profile. Quick-cook oats can be used interchangeably with rolled oats, but keep in mind the texture might be a bit different.

Serving Suggestions

These cookies are great on their own but also pair wonderfully with a glass of cold milk or a cup of coffee or tea. You can sprinkle some chopped nuts or dark chocolate chips on top before setting for an extra special touch. They also make a great homemade gift when wrapped in parchment and tied with a ribbon.

Cultural Context

No-bake cookies like these have been a beloved American classic for decades, prized for their simplicity and comforting flavors. They often appear at bake sales, family gatherings, and potlucks where quick, no-fuss desserts are prized.

A stack of brown cookies. Pin it
A stack of brown cookies. | gracefulflavors.com

Frequently Asked Questions

→ What type of oats work best in this dish?

Quick-cook oats are ideal as they absorb the peanut butter mixture well and help achieve the desired chewy texture.

→ Why is boiling the sugar mixture important?

Boiling briefly at the right time ensures the sugar dissolves properly, giving structure and preventing the final treats from being too soft or too hard.

→ How should the sweets be cooled for best texture?

Allowing them to cool on the countertop before refrigerating helps them set properly and maintain a chewy consistency.

→ Can other nut butters be used instead of peanut butter?

Yes, alternatives like almond or cashew butter can be substituted, though flavors and texture may vary slightly.

→ What causes these treats to become too gooey or too hard?

Over-boiling the sugar mixture results in hardness, while under-boiling leaves it gooey. Precise timing during boiling is key.

Peanut Butter No Bake

Easy peanut butter and oat clusters come together quickly for a satisfying sweet bite.

Prep Time
10 Minutes
Cook Time
10 Minutes
Total Time
20 Minutes
By: Barbara


Difficulty: Easy

Cuisine: American

Yield: 30 Servings

Dietary: Vegetarian

Ingredients

→ Dry Ingredients

01 3 cups quick-cooking oats
02 ¼ teaspoon salt

→ Wet Ingredients

03 ½ cup unsalted butter
04 2 cups granulated sugar
05 ½ cup whole milk
06 1 cup creamy peanut butter
07 2 teaspoons vanilla extract

Instructions

Step 01

In a large bowl, mix the quick-cooking oats and salt together. Set aside.

Step 02

In a small saucepan over medium-high heat, whisk together butter, sugar, and milk until combined.

Step 03

Bring the mixture to a full rolling boil and maintain it for 60 seconds, then immediately remove from heat.

Step 04

Whisk in peanut butter and vanilla extract until smooth and homogeneous.

Step 05

Pour the peanut butter mixture over the oat mixture and stir thoroughly to combine all ingredients.

Step 06

Line a baking sheet with wax paper. Using a medium cookie scoop, drop spoonfuls of the mixture onto the lined sheet.

Step 07

Allow cookies to cool at room temperature until set, approximately 1 hour. Once cooled, transfer to refrigerator for storage.

Notes

  1. Ensure the 60-second boil begins only after reaching a full rolling boil to guarantee proper setting. Cooling at room temperature before refrigeration prevents cookies from becoming too soft.
  2. Over-boiling can lead to hard cookies, while under-boiling may result in a gooey texture.

Tools You'll Need

  • Large mixing bowl
  • Small saucepan
  • Whisk
  • Medium cookie scoop
  • Baking sheet
  • Wax paper

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains peanuts and dairy

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 121.52
  • Total Fat: 4.81 g
  • Total Carbohydrate: 17.96 g
  • Protein: 2.84 g