Comforting and cozy, these Old Fashioned Iced Oatmeal Cookies are full of chewy and sweet goodness that will have you gobbling them down with your favorite beverage. These classic homemade cookies are better than store-bought and are always irresistible for kids and adults. If you love my Oatmeal Cream Pies, you’ll love this even easier recipe! 

These Old Fashioned Iced Oatmeal Cookies are infused with sugar, vanilla, and cinnamon and then packed with oats before being baked and topped with a sweet confectioner’s sugar glaze. This makes them the perfect cookie for any season. Although I especially love them in cold weather since I can pair them with hot chocolate ,they’re equally satisfying in the summer with a glass of cold milk! 

Why You’ll Love This Recipe

• Uses common pantry ingredients.
• No special baking or decorating skills are required.
• No chilling of the dough is needed.
• It is easy to personalize these cookies with yummy mix-ins for any occasion.

Ingredients Needed

For The Cookie Dough
Old Fashioned Oats – lightly grind the oats in a food processor or blender to add a finer texture to the cookies. Avoid quick-cooking oats.
Flour – use all-purpose.
Baking Powder – to help the cookies rise as they bake.
Cinnamon – adds warm spice and flavor to the cookies.
Butter – salted. Set it out to soften. Adds rich flavor to the dough.
Sugars – you’ll need both granulated white sugar and brown sugar. This adds sweetness and moisture.
Vanilla Extract – adds delicious flavor.
Eggs – gives the cookies structure as they bake.

For The Glaze
Powdered Sugar – to sweeten and provide structure and thickness to the glaze.
Milk – to add liquid, fat, and consistency to glaze
Water – to help mix the glaze and can be used to thin it out if it is too thick.

How To Make Old Fashioned Iced Oatmeal Cookies

What Type Of Oats Should I Use?

I like to use old-fashioned rolled oats, not quick-cooking oats. Regular old-fashioned oats will give you a chewier texture and help the cookies remain moist while quick-cooking oats tend to make the cookies hard and drier.

Do I Need To Pulse The Oats?

It is not necessary. Technically, no, you don’t. I’ve made them both ways, and I find that the difference is that the pulsed oats provide a more compact texture to the cookies when baked. If you don’t pulse them, you’ll see more of a whole oat once the cookies are baked and taste the texture when you bite into them. If you want to skip this step, no worries—the cookies will still taste and look fantastic!

Mix-Ins

Have fun adding additional ingredients if you choose. Here are a few ideas you can add individually or combine to personalize them to your tastes: chocolate chips, cinnamon chips, white chocolate chips, butterscotch chips, raisins, dried cranberries, chopped walnuts, or pecans.

How To Ice The Cookies

The cookies should be completely cool before topping them with the confectioner’s sugar glaze. Make the glaze, take a cookie, and dip the top of it into the glaze. Set the cookie on parchment paper to let the glaze set, and continue with the remaining cookies. Another technique is to spoon the icing over each cookie top, which works well if the glaze is thick and you want a denser frosting level on the top of each cookie. Either way, be sure to let the glaze wholly set before serving.

Are These Old Fashioned Iced Oatmeal Cookies Freezer Friendly?

Yes! I like to make these cookies for the holidays. Baked and cooled cookies, with or without the iced frosting, can be frozen in an airtight container or freezer bag for up to 3 months. For best results, separate each cookie with wax or parchment paper so they won’t stick together when frozen. Thaw on the countertop before serving.

Storage

Iced Oatmeal Cookies can be stored in an airtight container on the counter for up to 5 days. You can freeze them for up to 3 months in a freezer-safe container, separating each cookie with wax or parchment paper. Thaw on the counter before serving.

More Easy Oatmeal Recipes That You Will Love

Copycat Oatmeal Cream Pies
Caramel No-Bake Cookies
Monster Cookies
Easy Chocolate Chip Oatmeal Cookies
Favorite Oatmeal Raisin Cookies
Instant Pot Oatmeal