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No-Bake Peanut Butter Oatmeal Cookies

No-Bake Peanut Butter Oatmeal Cookies are a classic cookie with so much peanut butter flavor and a wonderful chewy texture.

Course Dessert
Cuisine American
Keyword no-bake cookies
Prep Time 10 minutes
Cook Time 0 minutes
Set Up Time 30 minutes
Servings 18
Calories 267kcal


  • 1/2 cup salted butter, cut into pieces so it will melt faster
  • 1 1/2 cups sugar
  • 1/2 cup milk
  • 1 cup creamy peanut butter
  • 1 teaspoon vanilla extract
  • 3 cups quick-cooking oats
  • 1/2 cup Reeses Pieces


  • Line 2 baking sheets with parchment paper and set side.
  • In a medium saucepan, heat butter, sugar, and milk over medium heat until mixture comes to a rolling boil (the entire surface should be full of vigourous bubbles.) Stir frequently while it is coming to a boil.
    Once you get a full rolling boil, set a timer for 60 seconds. Do not stir during this time period.
  • Once the 60 seconds is up, turn off the heat and stir in the peanut butter and vanilla until smooth.
  • Stir in the oats. Using a 1/4 cup measuring cup scoop up the dough and drop it onto prepared baking sheets. Press a few Reese's Pieces onto the top of each cookie.
    Tip- Do a test cookie. Dough shouldn't spread out too much, but if it does let the dough cool a minute or two before scooping out the remaining cookies.
  • Allow to set up for at least 30 minutes before serving.


Get all ingredients measured out and ready to go before you begin the recipe.


Calories: 267kcal