Leftover Oatmeal Cookies

These Leftover Oatmeal Cookies are so easy to make and a great way to use up leftover cooked oatmeal from breakfast!

The best leftover oatmeal recipes are versatile and fun, like our easy leftover oatmeal squares!

Why you are going to love our Leftover Oatmeal Cookies

I have loved oatmeal ever since I was a little kid. One of the things I love most about leftover oatmeal cookies recipes is that we can enjoy a great breakfast...

AND have a little something sweet for dessert too! I mean, hello! Half of the work has already been done for you.

Yes, I know - no one likes Oatmeal Cookies. OR SO THEY CLAIM! I have heard the joke quite often about being tricked into eating an oatmeal raisin cookie because the person thought it was a chocolate chip cookie! 

I however, am always happy with an oatmeal cookie.

These cookies made with oatmeal were inspired by my Baked Oatmeal recipe that we made for breakfast a while ago!

Our leftover oats treat pairs amazingly well with this Chocolate Chip Ice Cream recipe. You do not even need an ice cream maker, because it is a no churn recipe!

Check out some of our other Blondies, Brownies and Bars Recipes!

Are you searching for other recipes like this easy leftover oatmeal cookies? Try these:

You Will Love These Leftover Oatmeal Cookies

The only thing I love more than a bowl of oatmeal with a little sugar, banana and maple syrup on top are oatmeal cookies! This Leftover Oatmeal Cookies definitely does not disappoint! I love Oatmeal Raisin Cookies, and I absolutely LOVE Oatmeal Chocolate Chip cookies too, like this amazing recipe I am sharing using the leftover oatmeal from my recent Instant Pot Oatmeal Recipe.

It is so easy to make cookies from leftover oatmeal and they are perfect for gift giving around the holidays! I can never get enough of Oatmeal Cookies, but I love that these are actual squares! It makes them so much easier to gift because you can just stack them up evenly in a storage container or gift tin.

How to Make Leftover Oatmeal Cookies

The best thing about using leftover oatmeal in this recipe is that we can skip the hard part of making these cookies!

Here are the Ingredients that you will need to make our Leftover Oatmeal Cookies

The oatmeal combined with the other ingredients will give us somewhat of a standard cookie dough. We can forget all about the cup brown sugar, teaspoon baking powder, coconut oil, etc!

• All Purpose flour
• Baking soda
• Salt
• Butter, softened at room temperature
• Honey - you can use any type of honey or even maple syrup!
• Egg at room temperature
• Pure Vanilla Extract
• Prepared leftover oatmeal - you can use whatever type of oatmeal your family usually eats, whether it be instant oatmeal packets, steel cut oats, quick cooking oats, etc.
• mini chocolate chips - you can also use regular chocolate chips. I just love the mini chocolate chips because they flavor goes farther!

You will find all of the exact ingredient amounts in the printable recipe card at the end of this blog post.

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Directions for making this Leftover Oatmeal Cookies Recipe

Preheat your oven to 350 degrees Fahrenheit and spray a 9 x 13 baking pan with non stick cooking spray. Set your prepared baking pan aside. 

In a small mixing bowl, you are going to add all of your dry ingredients. This includes the all purpose flour, the baking soda and the salt. Mix all of the dry ingredients together well and then set the bowl aside.

In a large mixing bowl, you are going to combine your wet ingredients. This includes your melted butter and honey. Mix them together well and then stir in the egg and pure vanilla extract.

Add in your cooked oatmeal and mix everything together well.

Now combined these wet ingredients into the dry ingredients and mix just until combined.

Finally, you are going to fold in the chocolate chips.

Spread your oatmeal cookie dough mixture into your prepared baking pan.

Bake your cookies for 25-30 minutes or they are until golden brown and a toothpick inserted in the center comes out clean.

Remove your baking pan from the oven and set it on a cooling rack to let them cool completely before cutting into squares.

Variations for our recipes using cooked oatmeal

If you want to change the recipe up a bit, go ahead! The only limit is your imagination!

• Instant Oatmeal - If you did not make our baked overnight oatmeal recipe or don't have any leftover oatmeal, you can make leftover instant oatmeal packets or find recipes for cooked oatmeal online. 
• Peanut Butter - You can replace the chocolate chips with peanut butter chips if you like!
• Kid friendly - Feel free to add ¼ cup of your favorite dried fruit Or replace the chocolate chips with an equivalent amount of dried fruit. 

See this Lemon Cream Cheese Bars Recipe on my website if you love making blondies, brownies and bars!

We Recommend the Following Kitchen Equipment

Equipment can have a big impact on how your recipes turn out. We recommend the following for making these cookies!

• Farberware Nonstick Bakeware Baking Pan With Lid - This cake pan’s heavy-duty construction resists warping and heats evenly to brown beautifully and help reduce hot spots.
• Pyrex Smart Essentials 3-Piece Prepware Mixing Bowl Set - Set includes 1-qt, 1.5-qt, and 2.5-qt round glass bowls. This is the perfect set for all manners of prepping, baking and home entertainment.
• Pyrex 3 Piece Glass Measuring Cup Set - 3 piece set includes 1-cup, 2-cup, and 4-cup measuring cups that are perfect for baking, cooking, mixing and more!
• 2 Pack Cooling Rack for Baking - The 4 feet are designed to improve air circulation, and the cooling racks have perfectly spaced parallel lines to prevent food from slipping through the gaps while maintaining full contact with the air to maximize roasting and cooling.

How To Store Leftover Oatmeal Cookies

You can store any uneaten leftover oatmeal cookies in an airtight container for up to 3 days before they begin to go stale.

You can also freeze any leftovers for up to a month. Just make sure that they are wrapped tightly in a freezer safe Ziplock bag.

Share our Leftover Oatmeal Cookies with your friends and family on social media!

If you love this Leftover Oatmeal Cookies Recipe as much as we do, please leave me a 5-star review below and help me share this recipe on Facebook, Twitter and Pinterest!

If you do make our super fun dessert recipe, I hope that you will share that you tried it on Pinterest! I love it SO MUCH when readers share their feedback!

Are you looking for Delicious Breakfast Recipes?

Now, while this isn't a breakfast recipe, it was inspired by breakfast! If you are looking for fun breakfast and brunch recipes, check out some of my favorite breakfast dishes:

To print the recipe for our Leftover Oatmeal Cookies, simply click the recipe card below!

I know that many people still like to print out recipes and keep them in a recipe binder, or simply have the printed recipe sitting in front of them when it comes time to cook! You can also email this recipe!