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Lyna Recipes

Crumbl-Style Iced Oatmeal Cookies (Thick and Chewy)

Thick and chewy oatmeal cookies topped with a sweet vanilla glaze, inspired by the popular bakery-style cookies.
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Prep Time 15 minutes
Cook Time 10 minutes
Total Time 25 minutes
Servings: 10 cookies
Ingredients Method Notes

Ingredients
  

Cookies:
  • 1/2 cup butter softened
  • 1/3 cup brown sugar
  • 1/4 cup granulated sugar
  • 1 egg
  • 1 teaspoon vanilla extract
  • 1 cup all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/4 teaspoon cinnamon
  • 1 pinch nutmeg
  • 1 1/4 cups old-fashioned rolled oats
Glaze:
  • 3/4 cup powdered sugar
  • 1 1/2 tablespoons milk
  • 1/2 teaspoon vanilla extract

Method
 

Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper.
    Cream butter, brown sugar, and granulated sugar until light and smooth.
      Add egg and vanilla extract, mixing until fully combined.
        In a separate bowl, whisk flour, baking soda, salt, cinnamon, and nutmeg.
          Gradually mix dry ingredients into wet ingredients.
            Fold in rolled oats until evenly combined.
              Scoop large dough portions onto baking sheet, spacing them apart.
                Bake for 10–12 minutes until edges are set and centers are soft.
                  Let cookies cool completely.
                    Mix powdered sugar, milk, and vanilla until smooth, then spread over cookies.

                      Notes

                      Do not overbake—cookies will continue to firm up after baking. Adjust glaze thickness by adding more powdered sugar if needed. Store in an airtight container for up to 3 days.