Delicious Iced Oatmeal Cookies

Section: Sweet Treats

You’ll get soft, chewy cookies packed with oats and cozy spices like cinnamon and nutmeg. Start by mixing shortening with sugars till fluffy, then fold in oats and bake until golden. After they cool a bit, dip each cookie in a simple glaze made from powdered sugar and milk to add a sweet touch. To mix it up, toss in some chopped nuts or raisins. Using quick oats makes them softer and extra tender.

This treat hits the right spot between sweet, spicy, and wholesome. It’s simple to make and perfect for sharing or a quiet snack time.

Lindsey
Created By Lindsey
Most recently updated on Wed, 19 Nov 2025 21:50:15 GMT
Stack of oatmeal cookies with icing Save
Stack of oatmeal cookies with icing | cookbing.com

If you want a soft, chewy cookie with a simple sweet topping, these iced oatmeal treats hit the spot perfectly. They're quick to whip up and bring a cozy, old-school vibe to your snack time.

I first tried these on a slow Sunday and they quickly became my easy homemade favorite whenever I want a fuss-free sweet.

What You Need

  • Brown sugar: packed tightly for moisture and that rich caramel flavor that pairs well with oats
  • Milk: helps the glaze set smoothly—whole milk works best for creaminess
  • Vanilla extract: gives a bright pop that lifts the whole cookie
  • Water: used both in the dough and to thin the glaze just right
  • Salt: balances all the sweetness and flavors in the cookie
  • Oats: quick or old fashioned will give you that chewy hearty bite
  • Powdered sugar: creates a smooth glaze that sets fast and looks shiny
  • Nutmeg and cinnamon: warm, cozy spices that make the cookie feel like home
  • All-purpose flour: gives just enough structure without making the cookie heavy
  • Shortening: softens the texture and creates a tender crumb; make sure it’s soft at room temperature for easy mixing
  • Baking soda: helps the cookies puff up nicely without becoming cakey

Steps To Finish

Mix the Soft Base:
Start by beating the softened shortening with both sugars until the mix is puckery and light. This traps air for a soft, chewy cookie. Don’t rush—room temp shortening really helps smooth the mix.
Combine Flavors and Flour:
Next, add water and vanilla until everything's blended. In another bowl, stir flour, baking soda, salt, nutmeg, and cinnamon. Slowly add the dry mix into the creamy base, stirring gently so the spices and leavening spread evenly and your cookie rises just right.
Mix in the Oats:
Fold the oats in carefully so the dough stays light, making sure each cookie gets that perfect chewy texture.
Drop and Space Dough:
Use a medium scoop or spoon to drop dough globs onto greased baking sheets, leaving some room between each one for spreading.
Bake Until Golden:
Pop them into a 350°F oven for about 10 to 12 minutes. Look for edges with a nice golden color and a slightly soft center. Let the cookies chill on the pan for two minutes before moving to a rack so they don’t break.
Whip Up the Glaze:
While the cookies cool, mix powdered sugar and milk until smooth. Add water teaspoon by teaspoon until you get a glaze thick enough to coat the back of a spoon but still flowy.
Dip and Shine:
Quickly dunk the tops of the cooled cookies in the glaze. Let the extra drip off back into the bowl for a glossy, sweet finish that sets up nicely.
A stack of iced oatmeal cookies.
A stack of iced oatmeal cookies. | cookbing.com

Cinnamon really shines here, giving a warm fall vibe that pairs so well with the rich sugar flavors. Baking these with my grandma always made the kitchen smell amazing.

Keeping Them Fresh

Keep your cookies in an airtight container at room temp to stay soft for up to five days. If they get a bit firm, zap them in the microwave for about 10 seconds. The glaze might crack a bit but the flavor stays spot on.

Swaps And Twists

Swap half the shortening for butter for extra richness but your cookies might get a bit crispier. Try maple syrup instead of vanilla for a sweet twist. Switch the spices out for pumpkin pie mix or toss in raisins for a chewy bite.

How To Serve

Enjoy these with hot chai tea or cold milk for a cozy combo. Right after glazing, sprinkle some chopped nuts on top for a little crunch. Fresh fruit or yogurt also makes a great side for a balanced snack.

A stack of iced oatmeal cookies.
A stack of iced oatmeal cookies. | cookbing.com

These classic iced oatmeal treats are timeless. Once you get the hang of the easy glaze, they'll turn into a favorite that brings back warm memories with every bite.

Frequently Asked Cooking Questions

→ Which oats work best here?

You can pick quick or old-fashioned oats. Quick oats make the cookies softer, and old-fashioned oats give them more bite.

→ Can I throw in nuts or dried fruit?

Absolutely, adding chopped nuts or raisins gives extra flavor and a nice texture boost.

→ How do I get the glaze just right?

Mix powdered sugar with milk first, then stir in water slowly, a teaspoon at a time, until it’s smooth enough to dip the cookies.

→ What’s the secret for soft cookies?

Use quick oats and make sure to whip the shortening and sugars well for soft, tender cookies.

→ How long should they bake?

Bake at 350°F for about 10 to 12 minutes until the edges turn golden. Take them out and cool them a bit before adding the glaze.

Iced Oatmeal Cookies

Chewy oatmeal cookies with an easy glaze on top that satisfy any sweet tooth.

Preparation Time
20 minutes
Time to Cook
12 minutes
Overall Time
32 minutes
Created By: Lindsey

Type of Recipe: Sweet Treats

Cooking Difficulty: Great for Beginners

Cuisine Style: American

Servings Yielded: 36 Number of Servings (Roughly 36 cookies)

Diet Preferences: Vegetarian Option

Ingredients List

→ Sugars and Fats

01 220 g packed brown sugar
02 170 g shortening
03 100 g white sugar

→ Liquids and Flavors

04 60 ml milk
05 5 ml vanilla flavor
06 60 ml water

→ Dry Mix

07 125 g plain flour
08 2 g cinnamon ground
09 1.5 g salt
10 180 g oats (quick or old fashioned)
11 0.5 g ground nutmeg
12 5 g baking soda

→ Topping

13 240 g powdered sugar, sifted
14 water added bit by bit to get right drip

Detailed Cooking Steps

Step 01

Mix shortening with both sugars in a big bowl until it looks light and fluffy.

Step 02

Pour in water and vanilla to the creamed mix and stir well. In another bowl, whisk flour, baking soda, salt, nutmeg, and cinnamon. Slowly stir dry stuff into wet. Fold in oats nicely.

Step 03

Scoop dough with medium spoon onto greased pans leaving space between each.

Step 04

Put pans in oven preheated at 175°C and bake 10 to 12 minutes till edges turn golden. Let cookies rest on pan 2 minutes before moving to cooling rack.

Step 05

While cookies cool, stir milk with powdered sugar until smooth. Add water slowly, a teaspoon at a time, until glaze feels right.

Step 06

Quickly dip tops of cooled cookies in glaze, let extra drip off, then set aside to dry.

Helpful Hints

  1. Use quick oats if you want it softer. Make sure shortening’s soft before mixing for best result. You can throw in nuts or raisins to jazz it up.

Necessary Kitchen Tools

  • Big mixing bowl
  • Measuring cups and spoons
  • Medium cookie scoop
  • Cookie trays
  • Wire rack for cooling

Allergy Information

Always check ingredient labels for allergens and ask a doctor if unsure.
  • Has gluten and dairy

Nutritional Info (Per Serving)

These nutritional values serve as a guide and don’t replace advice from healthcare experts.
  • Calorie Count: 150
  • Fat Content: 7 grams
  • Carbohydrate Content: 22 grams
  • Protein Amount: 2 grams