Get two new free healthy recipes each week. Sign Up

Overnight Breakfast Cookie

5 from 31 votes

Who wouldn’t want to eat a giant oatmeal cookie for breakfast? This overnight breakfast cookie lets you do just that!

breakfast cookie

No bake, vegan, with just 6 ingredients.

A single serving oatmeal breakfast cookie you can easily customize.

Mix the ingredients together the night before to have a wholesome breakfast the next morning, ready whenever you want it!

Readers also love this Almond Flour Banana Bread

breakfast cookie ingredients

The “single lady” breakfast cookie was inspired by two things.

First was an email I received from a reader who asked if I could come up with a recipe similar to the Erin Baker Breakfast Cookies sold in stores.

Her email reminded me of an idea I’d written down years ago but had never actually gotten around to trying.

There’s a recipe on my blog for Snickerdoodle Oatmeal, and one day a blogger named Abbie (whose blog is sadly no longer in existence) recreated my oatmeal recipe in the form of a giant breakfast cookie and posted about it on her blog.

She combined all of the ingredients in a bowl, spread the batter on a plate, and let the extra moisture evaporate overnight so it turned into a soft and delicious no-bake snickerdoodle breakfast cookie.

Her idea was so brilliant, and I don’t know why I didn’t try it until now! For more healthy breakfast ideas, be sure to check out the link below:

Vegan Breakfast Recipes

overnight breakfast cookie

The flavor possibilities are endless…

Peanut Butter

Chocolate Brownie


Banana Walnut

Cinnamon Raisin

Espresso Chocolate Chip

Cookie Dough

Watch the overnight breakfast cookie video above.

This "no-bake" healthy oatmeal breakfast cookie can be customized, for different flavors!
Pin it now to save for laterPin Recipe

Overnight Breakfast Cookie

With this overnight healthy breakfast recipe, you get to eat a giant oatmeal cookie for breakfast!
Prep Time 5 minutes
Total Time 5 minutes
Yield 1 serving
5 from 31 votes


  • 1/2 cup rolled oats
  • 1/2 cup mashed banana or applesauce
  • 2 tbsp milk of choice
  • 1 1/2 to 2 tbsp protein powder or flour, such as almond or oat flour
  • 1 to 2 tbsp nut butter or allergy-friendly sub
  • 1/8 tsp salt
  • optionsl add-ins such as chia seeds, raisins, shredded coconut, or chocolate chips


  • Stir all ingredients together. Spread out on a plate. Refrigerate overnight, uncovered or with a paper towel placed gently on top. Frost if desired, or add toppings such as melted peanut butter and chocolate. Enjoy!
    View Nutrition Facts


Also make sure to try these Overnight Oats – with 15 new flavors.

Have you made this recipe?

Tag @chocolatecoveredkatie on Instagram

More Healthy Breakfast Options

How To Make Protein Bars Easy Recipe

Protein Bars

The Best Dark Chocolate Banana Bread Recipe

Chocolate Banana Bread

The Best Keto Low Carb Blueberry Muffins

Healthy Blueberry Muffins

Or these flourless Keto Blueberry Muffins

The Best Vegan Pancakes Recipe

Vegan Pancakes

The Best Easy Healthy Applesauce Muffins

Applesauce Muffins

Published on January 21, 2022

Meet Katie

Chocolate Covered Katie is one of the top 25 food websites in America, and Katie has been 
featured on The 
Today Show, CNN, 
Fox, The 
Huffington Post, and 
ABC's 5 O’Clock News. Her favorite food is chocolate, and she believes in eating dessert every single day.

Learn more about Katie

Get Free Recipes

Don’t Miss Out On The NEW Free Healthy Recipes

Sign up below to receive exclusive & always free healthy recipes right in your inbox:

Chocolate Covered Katie The Healthy Dessert Blog Recipes

Popular Right Now

Reader Interactions


Leave a comment or reviewLeave a rating
  1. Christina says

    Interesting recipe idea! I’m curious to know what the texture’s like. Is it like overnight oats, or more like a no-bake cookie?

  2. Anisah says

    I added one tbsp of cocoa powder because why have an overnight oat cookie when you can have a chocolate overnight cookie? Can’t wait for breakfast tomorrow. Also I covered it with cling film then put it in the fridge

  3. Cassie Autumn Tran says

    I haven’t tried Erin Baker cookies yet, but man oh man, do they look delicious! I bet this cookie will taste just as amazing, if not better 🙂 my flavor combination: cinnamon peanut butter chocolate and sea salt!

  4. Ann says

    I made this and the batter was so good that I didn’t bother plating it or waiting to eat it. So now I have to make another one for breakfast hehe.

  5. Sophie says

    just made this using one full mashed banana (didn’t have measuring cups handy) and the batter looks really gooey… how much of a ‘nana is half a cup? i’m going to eat it either way, just really hoping it doesn’t have too much moisture to “bake” in the fridge tonight! fingers crossed 🙂

  6. Lauren says

    New fan here. I’m excited to try this one out, maybe with almond butter and mini chocolate chips thrown into the batter. Or raspberry jelly and mashed banana on top.

  7. Lena says

    I made one with almond flour because I don’t do protein powder. It worked great! Already have tomorrow’s in the fridge 🙂

    • Patti says

      I would not use flour in a no-bake recipe. I emailed Katie about this yesterday and am hoping she will adjust the recipe. Do you remember the big e coli outbreak a few years ago from raw cookie dough? It wasn’t the eggs in the dough that were the problem…it was the flour. It was emphasized that flour is meant to be baked, and you should not eat it raw. I know lots of people will do it anyway, but to me it isn’t worth the risk and shouldn’t be suggested in a recipe, especially when people reading may not be aware of the risk.

  8. Vanessa L. says

    I made a pumpkin one and put dark chocolate dreams PB&CO on top and it was my favorite breakfast I have had all month. I love how you don’t have to use an oven or cook anything at all. Thanks for the recipe!

  9. Christina says

    Hi Katie,

    Yum!! Like all of your recipes, this is so delicious! Thanks for the great recipe.

    I would love to be a part of your team.

    Hoping to hear from you soon!

  10. lena pfeffer says

    has anyone tried adding the chia seeds yet? i’m wondering if it would firm it up a bit more. also, how much chia seeds should one add???

  11. Dawn Tittle says

    Mine never “hardened” up, the goo tastes good, but I need to take it somewhere, wondering if I could toss it in the oven for a few minutes

  12. JN says

    OMG! I hate oatmeal but decided to give this a try as I had some protein powder. Wow. .It was delicious, huge and had me so filled that I did not snack the entire day until 5pm!!!! LOVE IT! Now I make this every other night for the next morning! THANK YOU Katie!

  13. Diana says

    My cookie is still really mushy this morning. It doesn’t lift off the plate, I would have to eat it with a fork or spoon. Anyway to make it more firm?

  14. Cynthia says

    Thanks for your wonderful and simple recipes!
    Just wondering why my nutrition calculations never match up. It says the whole recipe is 241 calories, but just 1/2 cup of oats (150 calories) and 1 tbsp of nut butter (100 calories) adds up to more, not to mention the other ingredients. Where am I going wrong?!?! Thanks for clarifying 😀

    • Jason Sanford says

      Thanks for catching this. It looks like the online calculator Katie uses has some ingredients’ calories listed incorrectly in the database. I’ve just let her know to check on this recipe and fix it accordingly, so it should be updated today. Sorry for the trouble, and thank you again for noticing this.

      Jason (media relations)

  15. Anne Kennedy says

    This was so easy and delicious. I love how it can be customized. If I have time in the morning, I bake the cookie for a super happy morning. If I don’t have time then I eat it straight from the fridge for an equally happy morning. Thanks for sharing your creativity and food genius with the world!

  16. Erica says

    I really enjoy this recipe! I actually have been using quick oats, because that is what I had after making s batch of regular no bake cookies a while back. However, I assume that I like the texture I get from the quick oats better than I would rolled. And I’m not aware that there are any real differences nutritionally. I am wondering, though, does anyone find that they have been able to actually pick it up like a cookie and eat it? The outside gets solid, but the inside is gooey, requiring me to have to use utensils. It’s not a huge deal, but I was hoping that I would be able to pick it up and take it to go. If someone could give me their experience with this, I’d appreciate it. Thanks.

  17. Nicole says

    I made this last night but it didn’t set. :/ I’m not sure why. I’m going to give another shot, because it was delicious even with a spoon! 😉 Thanks for sharing!

    • Louise says

      I just made this and it was delicious! I subbed the apple sauce for mashed banana. The portion is pretty big so I actually split it in two (otherwise it’s a 600calorie breakfast!) People in these comments keep mentioning how they couldn’t pick it up/it didn’t set. If you watch the video on the post, you can see Katie eats it with a spoon… so I don’t think it is meant to be picked up and set like an actual cookie, It’s more like of a set cookie dough. Anyway, really good and I will 100% be making this again!

  18. pat marino says

    I made this recipe it was delicious. had some left and rolled them
    into little bites dipped them in white chocolate then put in freezer.
    eat them frozen delicious.

  19. Ann L. Justi says

    It was so easy fast and delicious. I added pumpkin pie spice, cardamom, and cacao chips. I love that you change up the flavor so easily.

  20. Suki says

    Yeah, I got 428 calories, even WITH skim milk and limiting the protein powder to 1&1/2 tbs, as well and only one tbs peanut butter. Definitely gotta be careful with the add-ins! Yikes!

    • CCK Media Team says

      Along with the add-ins, skim milk is also much higher in calories than cashewmilk or unsweetened almond milk, which have just 25-30 per cup if you wanted to look into one of those options for baking.

  21. Marissa says

    If I made several servings at once would they last a few days in the fridge or would the consistency get weird? Can’t wait to try this!

  22. Lily says

    Very filling and delicious! I added cinnamon and microwaved the whole thing in the morning, and wow this breakfast cookie is my new winter breakfast! Especially loved how simple the recipe is!!!

  23. Myra Clemans says

    5 stars
    Didn’t get this one. Shouldn’t be called a “cookie”. It’s just cold, thick oatmeal.

    But I’ve loved all the other Katie recipes I’ve tried. I just made the healthy Butterfingers.

  24. Myra says

    5 stars
    Changing my comments. I Stir one of these up every day. Flip it over the second day. Leave it alone or cook it a little until firm/crisp enough. I usually warm it and top it with a little peanut butter/jelly mixture. OR, top with thawed frozen fruit.

5 from 31 votes (28 ratings without comment)

Leave A Reply

Recipe Rating

Get Free Recipes

Don’t Miss Out On The NEW Free Healthy Recipes

Sign up below to receive exclusive & always free healthy recipes right in your inbox:

Chocolate Covered Katie The Healthy Dessert Blog Recipes