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Overhead shot of iced oatmeal cookies with thick crackly vanilla icing

Iced Oatmeal Cookies


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  • Author: elodie
  • Total Time: 30 minutes
  • Yield: 1620 cookies 1x
  • Diet: Vegetarian

Description

These iced oatmeal cookies are soft in the center, chewy on the edges, and finished with a sweet crackly vanilla glaze. Made with pulsed oats for that classic bumpy texture, they taste just like the nostalgic bakery-style cookies — but fresher, cozier, and totally homemade.


Ingredients

Scale

For the Cookies

  • 1 cup (140g) old-fashioned rolled oats

  • 1 cup (125g) all-purpose flour

  • 1 tsp baking soda

  • 1 tsp ground cinnamon

  • ½ tsp salt

  • ½ cup (113g) unsalted butter, softened

  • ½ cup (100g) brown sugar

  • ¼ cup (50g) granulated sugar

  • 1 large egg

  • 1 ½ tsp vanilla extract

For the Icing

  • 1 ½ cups powdered sugar

  • 23 tbsp milk or cream

  • ½ tsp vanilla extract

  • Pinch of salt


Instructions

1. Pulse the Oats

Add the rolled oats to a food processor. Pulse 2–3 times until slightly broken but not powdered. This creates the classic crackly iced oatmeal look.

2. Mix Dry Ingredients

In a bowl, whisk together pulsed oats, flour, baking soda, cinnamon, and salt.

3. Cream Butter & Sugars

In a large bowl, beat softened butter, brown sugar, and granulated sugar until creamy. Add egg and vanilla and mix again.

4. Combine Wet & Dry

Add the dry mixture to the butter mixture and stir until just combined. Don’t overmix.

5. Scoop & Bake

Scoop the dough onto a lined baking sheet. Bake at 350°F (175°C) for 10–12 minutes, until edges are lightly golden.

6. Cool Completely

Let cookies cool on a rack before icing — warm cookies will melt the glaze.

7. Make the Icing

Whisk powdered sugar, milk, vanilla, and salt. Adjust thickness:

  • Too thick → add a splash of milk

  • Too thin → add powdered sugar

8. Dip or Drizzle

Dip the tops of the cookies into the icing or drizzle over them. Let set 15–25 minutes.

Notes

  • For thicker cookies: Chill dough 20–30 minutes before baking.

  • For crispier cookies: Bake 1–2 minutes longer and use more white sugar.

  • Maple or cinnamon icing: Add 1 tbsp real maple syrup OR ½ tsp cinnamon to the glaze for fun variations.

  • Cookies stay fresh 3–4 days in an airtight container.

  • Freeze baked cookies (pre-iced) up to 3 months.

  • Prep Time: 15 minutes
  • Cook Time: 10–12 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 cookie
  • Calories: 150
  • Sugar: 12g
  • Sodium: 115mg
  • Fat: 7g
  • Saturated Fat: 4g
  • Unsaturated Fat: 2g
  • Trans Fat: 0g
  • Carbohydrates: 22g
  • Fiber: 1g
  • Protein: 2g
  • Cholesterol: 25mg