No-Bake Peanut Butter & Protein Oatmeal Cookies

Last year, I decided to make Will no-bake cookies before this 24-hour running relay race he was doing (it’s called Ragnar if it sounds like your kind of thing). I figured the oats and peanut butter would be good fuel to keep his energy up. Little did I know they’d be a major hit and devoured by everyone on the team.

Will said these cookies were just the ticket before a run when his energy was feeling low. Personally, I think these are most enjoyable when I am cuddled up on the couch wearing sweatpants after a long day. But however you eat them, I’m sure you’ll enjoy them!

Here are the ingredients you need minus Muscle Milk, which I had already recycled!
Here’s what the mixture should look like right before you scoop it onto the wax paper
First batch is on wax paper.​


  • 1 1/2 Sticks of Butter
  • 3 Cups of Sugar
  • 3/4 Cup of Muscle Milk
  • splash of vanilla extract
  • 1 1/2 Cups Smooth Peanut Butter
  • 5 Cups of Quaker Oats


  1. In a saucepan, mix butter, sugar and Muscle Milk over medium heat.
  2. Once the mixture reaches a rolling boil, let it sit for two minutes.
  3. After the two minutes is up, remove the saucepan from the heat and mix in peanut butter and vanilla extract.
  4. Next stir, in the oats one cup at a time. When all the oats are mixed in continue stirring as it cools.
  5. Once the mixture has thickened, scoop out spoonfuls on to wax paper and let them sit until they are hard.

This recipe makes about 30 cookies for me, but that can vary depending on how large you like them. I made this recipe after I was inspired with some similar ones online and decided to try it with Muscle Milk for an extra kick of protein. Of course, you can try the recipe with protein powder mixed into milk, if you’re looking for a similar way to get a protein boost.
Do you love no-bake cookies? Have you had or made peanut butter ones like these? I’d love to hear about it in the comments section.

Cheers to the weekend!

Sarah Camille

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17 Replies to “No-Bake Peanut Butter & Protein Oatmeal Cookies”

    1. Oh no! Well I bet it would be just as good with whey if you mix that with milk. Let me know if you try it. 🙂

  1. These look delicious, I love the idea of no bake cookies especially in warmer months when you dont want to have the oven on for long.

  2. These look so good. And the no bake part, has to be my most favorite. Will have to try to make these with my girls.

  3. Such an amazing idea to put protein in them. My mom makes no bakes all the time and I never thought about adding some protein in them. Can’t wait to see more recipes

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