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 would be a major hit and devoured by everyone on the team. Will said these no-bake peanut butter cookies were just the ticket before a run when his energy was feeling low. He loves taking them for his motorcylce racing weekends too. Personally, I think these are most enjoyable when I am cuddled up on the couch wearing sweatpants after a long day. But however and wherever you eat them, I bet you’ll find them as tasty as I do!

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.
No-Bake Peanut Butter & Protein Oatmeal Cookies Recipe
Ingredients:
- 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
Steps:
- In a saucepan, mix butter, sugar and Muscle Milk over medium heat.
- Once the mixture reaches a rolling boil, let it sit for two minutes.
- After the two minutes is up, remove the saucepan from the heat and mix in peanut butter and vanilla extract.
- Next stir, in the oats one cup at a time. When all the oats are mixed in continue stirring as it cools.
- 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, 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 peanut butter cookies? Have you had or made ones like these with protein powder or muscle milk? I would love to hear your cooking secrets in the comments section.
Cheers to the weekend!
Sarah Camille
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See my disclaimer here.
I definitely want to try to make this recipe but I’m guessing you used a liquid form of muscle milk and not the powder? And what flavor did you use? I have vanilla cream powder and figure I can just do one scoop with 3/4 cup milk but that would only provide 16g of protein… hmm… if you have any suggestions let me know as I am responsible for baking treats for a half marathon trail run for about 150 people and I feel like this could be a healthy item in addition to my not so healthy muffins and cookies… of course I will test out a single batch before I triple or quadruple it! 🤪 thanks for sharing!
Hi Amy! Yes, I used the liquid vanilla muscle milk. Combined with the peanut butter there there’s a pretty good amount of protein, but you could try adding another scoop of powder. I don’t think that would alter the taste & they’d be perfect for a half marathon!! Let me know if you try it & best of luck with the race! 😊
thank you so much for the reply!! I will be sure to check back in after I give this recipe a shot! and great point about the protein content in the PB! I hadn’t even thought of that. 🙂
Of course!! Can’t wait to hear how it turns out for you!
You had me at no bake! These look beyond delicious.
These look so delicious and I love that they are no-bake! My husband loves peanut butter so we must give this a try. Thanks!
I love no bake cookies! I have never thought to use peanut butter and these look amazingly delicious! I will have to try them out!
These look incredible. I am a cookie fiend! Pinning for later! 😀
Gosh, these look yummy! I’ve never heard of muscle milk before though, can you recommend a vegan alternative? Thanks! 💚
These look totally delicious. I love that they are quick and easy to do.
Wow. Amazing! Thank you so much for sharing this! I am definitely going to try these cookies. It looks so delicious! I have written that oatmeal can also help lose weight: https://www.panaprium.com/oatmeal-weight-loss/ What do you think?
I loved reading this. It gave some new insights. Keep sharing useful content! 🙂
that looks soo yummy but unfortunately I cant use muscle milk because I am deathly allergic to Casein Protein. Wonder what it would taste like subbed with Whey?
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. 🙂
These look delicious! No-bake are always a great snack/dessert to have on hand at my house.
Yum! These look absolutely delicious!
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.
These look good!! I’m always looking for things high in protein to feed my teenage son. Thank you for sharing!
I’M SO MAKING THESE! This looks tasty! I’m super excited, anything I don’t have to bake is my favorite!
This seems fairly easy and something I can get the kids in on!
We grew up with these as a kid, but with chocolate! Love them!
These look and sound great! I love no bake and I love the peanut butter idea. And yea, I’d eat these on the couch too lol.
Looks scrummy. Will have to give it a try, my sister would love these xx
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.
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
They look yummy and who doesn’t love a no-bake cookie! Thanks for sharing, I have a 13 year old in our house who is hanging out for me to try these out!!