To bake or not to bake… that's not even a question when you taste these melt-in-your-mouth No-Bake Chocolate Peanut Butter Oatmeal Cookies!! A butter and sugar mixture is stirred together with peanut butter and old-fashioned oats then refrigerated until firm.
Make the Base. Add butter to a medium-sized saucepan over medium heat. Once butter has melted, add sugars, milk, and cocoa powder. Bring to a boil and let boil for 1 minute, stirring occasionally. Remove from the heat and stir in peanut butter, vanilla, and salt.
4 Tbsp. butter, ¾ cup sugar, ½ cup packed brown sugar, ½ cup milk, ¼ cup cocoa powder, ⅔ cup peanut butter, 2 tsp. vanilla extract, ¼ tsp. salt
Add Oats and Scoop. Pour sauce over the oats in a large bowl and mix to combine. Let sit for 5 minutes before scooping out into 1 ½ tablespoon-sized balls.
3 cups old-fashioned oats
Chill and Enjoy. Place balls evenly spaced on a parchment paper-lined baking sheet, pressing down slightly to flatten them out. Refrigerate for at least 1 hour or up to overnight for the best results.
Notes
Meal Prep & Storage
To Store: Seal the cookies in an airtight container in the refrigerator for up to 2 weeks. Place parchment or wax paper between layers to prevent them from sticking together.
To Freeze: Place the cookies in a freezer-safe airtight container for up to 3 months.
Dietary Modifications
The recipe you’ll find below is already vegetarian as written. Here are some adjustments and substitutions you can make to help it fit your other dietary requirements:
Gluten-free: Make sure to use certified gluten-free oats.
Dairy-Free: Select a plant-based butter alternative or use coconut oil.
Vegan: Swap out the butter for coconut oil or vegan buttery sticks.
Refined Sugar-Free: Substitute coconut sugar for the white and brown sugar.