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Learn how to make the BEST No Bake Cookies! You will love this recipe – they are so good they taste like a peanut butter cup! I have a secret that makes these turn out every time – and you’re going to LOVE them.

stacked chocolate cookies with oats in them.


BEST Classic No Bake Cookies

Remember the classic peanut butter no bake cookies with oatmeal?  They’ve been around forever and it’s definitely one of my favorite easy cookie recipes to make. Especially during the summer when the last thing I want to do is turn on the oven. Every time I make these, I can’t help but be transported back to my childhood – they were always a favorite. 

There are lots of recipes out there and they’re not all the same. Although they’re quick and easy to make, there’s a few things to keep in mind so they turn out perfectly.

Why you’ll love this recipe

  • My recipe has that classic peanut butter, oatmeal and chocolate combination that you will instantly remember!
  • They set up perfectly EVERY time thanks to my secret tip: using a thermometer to measure the temperature.
ingredients in no bake cookies.

Ingredients Needed

  • Unsalted Butter – slice it for easy melting and start with it room temperature.
  • Non-fat Milk – you can use any fat or any non-dairy milk
  • Unsweetened Cocoa Powder – you can use regular or dutch process
  • Peanut Butter – creamy peanut butter works best – only a no-stir (not natural) peanut butter has been tested.
  • Quick Cooking OatsMake your own quick oats if you only have old fashioned.

Be sure to see the recipe card below for full ingredients & instructions!

How to Make No Bake Cookies

Make sure you have all your ingredients measured and ready to go. Making these goes quick! It’s also helpful to line your baking sheets with parchment before starting.

  • Melt the butter in the saucepan over medium heat.
  • Add the sugar, milk, and cocoa powder and whisk until smooth.
  • Bring the mixture to a boil. Boiling the mixture is the most important step because you want to cook it long enough to reach 230°F and no longer than that. (If you don’t have a thermometer boiling the mixture for 1 minute and 30 seconds is enough, but be sure to set a timer.)
  • Remove the sauce pan from the heat. Quickly stir in the peanut butter and vanilla extract and salt
  • Stir in quick oats.
  • Use the cookie scoop to scoop two tablespoons to make each cookie. Let the cookies sit until they’ve hardened and set. If you want to speed up the process, you can chill them in the refrigerator until they’ve set.
stacked chocolate cookies with oats in them.

Tip From Dorothy

Expert Tips

  • It’s important to use a candy thermometer ecause if you don’t boil it long enough your cookies will not set up properly. They won’t harden and will stay wet, which isn’t what we want! You can take the guesswork out of making these cookies by boiling the mixture until the temperature reaches 230°F.
  • Allergic to peanuts? You can use any non-peanut butter (i.e. sunbutter) as long as it’s a no-stir (not natural) peanut butter. You can even use Biscoff.
  • Gather everything you need before you start! The recipe goes fast.
  • Measure out all of the ingredients beforehand to make it super easy.
  • These last several days on the counter in an airtight container, refrigerated they’ll last at least a week. You can even freeze them!

FAQ

Why won’t my no bake cookies harden?

If your cookies are too soft and not set up that means you didn’t cook the cookie mixture long enough. In order for the cookies to harden properly the mixture must be boiled until it reaches a temperature of 230°F. This is approximately 1 ½ minutes on medium heat.

How long does it take for no bake oatmeal cookies to set up?

It doesn’t take long for the cookies to set up. They will be soft set in 30 minutes, but you can pop them in the refrigerator so the set up faster.

How long do these chocolate no bake cookies last?

Keep them in an airtight container and they will last for up to a week at room temperature. Or, store them in the refrigerator and they will last for up to two weeks.

How do you fix no bake cookies that didn’t set up?

If they don’t set, try placing them back in your pan and reheating them, bringing them to a boil until they reach 230°F.

Can I use tin foil instead of wax paper for no bake cookies?

Yes you can use foil, wax paper, or parchment.

Does the weather affect no bake cookies?

There is conflicting evidence of this, but supposedly if there is a lot of humidity in the air they might not set up right. However, I do think that the most important thing about making these is cooking them to the proper temperature to ensure they’ll set.

stacked chocolate cookies with oats in them.

The BEST No Bake Cookies Recipe

4.47 from 15 votes
These are the Classic No Bake Cookies of your childhood! They taste like a peanut butter cup and are no bake!
Prep Time 10 minutes
Cook Time 10 minutes
Setting Time 30 minutes
Total Time 50 minutes
Yield 24 cookies
Serving Size 1 serving

Ingredients
 

  • ½ cup (113g) unsalted butter diced
  • 2 cups (400g) granulated sugar
  • ½ cup (119ml) nonfat milk
  • ¼ cup (20g) unsweetened cocoa powder
  • ½ cup (120g) creamy peanut butter
  • 1 teaspoon vanilla extract
  • ¼ teaspoon salt
  • 3 cups (240g) quick cooking oats
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Instructions

  • Line two cookie sheets with parchment paper.
  • It’s very important that all your ingredients are measured and ready to go before you start and make sure you’ve read the directions before making these cookies. The process goes fast!
  • Melt the butter in a 3 quart saucepan over medium heat. Stir in the sugar, milk, and cocoa powder. Whisk until smooth then bring to a boil and cook for about 1 1/2 minutes, stirring occasionally. NOTE: you MUST boil them long enough or they will not set. To be sure of this, boil the mixture until it reaches 230°F on a candy or instant read thermometer. If you do not have a thermometer, this will take about 1 1/2 minutes on medium heat.
  • Remove from heat and stir in peanut butter, salt, vanilla, and oats.
  • Use a cookie scoop to drop 2 tablespoon size balls of cookie mixture onto the prepared baking sheets. Let sit to set or chill to harden quicker.

Recipe Video

Recipe Notes

Source: Adapted from Allrecipes.
  • It’s important to use a candy thermometer ecause if you don’t boil it long enough your cookies will not set up properly. They won’t harden and will stay wet, which isn’t what we want! You can take the guesswork out of making these cookies by boiling the mixture until the temperature reaches 230°F.
  • Allergic to peanuts? You can use any non-peanut butter (i.e. sunbutter) as long as it’s a no-stir (not natural) peanut butter. You can even use Biscoff.
  • These last several days on the counter in an airtight container, refrigerated they’ll last at least a week. You can even freeze them!

Recipe Nutrition

Serving: 1serving | Calories: 171kcal | Carbohydrates: 25g | Protein: 3g | Fat: 7g | Saturated Fat: 3g | Cholesterol: 10mg | Sodium: 52mg | Potassium: 92mg | Fiber: 2g | Sugar: 18g | Vitamin A: 129IU | Calcium: 16mg | Iron: 1mg
Nutritional information not guaranteed to be accurate
Course Dessert
Cuisine American

These Classic No Bake Cookies with peanut butter are the best recipe for easy chocolate no bake oatmeal cookies! They set up perfectly every time and are SO good they taste like a peanut butter cup!

Last Updated on July 9, 2023



Dorothy Kern

Welcome to Crazy for Crust, where I share recipes that are sometimes crazy, often with a crust, and always served with a slice of life.

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Recipe Rating




19 Comments

  1. I am so thankful your recipe had the key detail about the boiling temperature. I used a recipe that didn’t include that detail and it didn’t set up. Thank you for helping me be successful! They are delicious!

  2. I’m not understanding I did everything you said 3 cups of oats and it was still dry and I had to throw it out and I remade it and did 2 cups and it still came out dry what do I do wrong?

  3. I love these cookies they are just like the star crunch little Debbie cookies. These cookies are really good and they are a great recipe.