Ingredients
Wet Ingredients:
- 1 cup (2 sticks, 226g) salted butter
- 1 ½ cups (320g) dark brown sugar
- 2 large eggs, at room temperature
- 1 tablespoon vanilla bean paste
Dry Ingredients:
- 2 cups (240g) all purpose flour
- 1 ¾ cups (158g) old fashioned rolled oats
- 1 teaspoon baking soda
- 1 to 2 tablespoons espresso powder (adjust to taste)
- ½ teaspoon cinnamon
- ¼ teaspoon kosher salt
Espresso Icing:
- 1 tablespoon reserved brown butter
- 1 cup (180g) powdered sugar
- 1 teaspoon vanilla bean paste
- ½ teaspoon espresso powder
- 2 to 3 tablespoons milk
Instructions
- Brown the butter: Melt the butter in a medium saucepan over medium heat. Whisk constantly as it melts, then begins to crackle and foam. After 5 to 8 minutes, once it reaches a golden amber color and emits a nutty aroma, remove from heat and transfer all the browned butter, including the flavorful browned bits, into the bowl of an electric mixer. Let cool 5 to 10 minutes.
- Reserve butter for icing: Scoop out 1 tablespoon of the browned butter from the mixer bowl and place it in a medium bowl for later use in the espresso icing.
- Mix wet ingredients: Add the dark brown sugar to the browned butter in the mixer bowl and mix with the paddle attachment on medium speed for 1 minute. Add the eggs and vanilla bean paste and continue mixing on medium speed for another minute until smooth and caramel-like.
- Combine dry ingredients: In a separate medium bowl, whisk together the all-purpose flour, rolled oats, baking soda, espresso powder, cinnamon, and kosher salt.
- Mix dry into wet: Add the dry ingredient mixture to the wet ingredients in the mixer bowl. Mix on medium-low speed until just combined, being careful not to overmix.
- Chill dough: Cover the cookie dough with plastic wrap and chill in the refrigerator for 30 minutes to firm up and enhance flavor.
- Preheat oven & prepare baking sheet: While dough chills, preheat the oven to 350°F (177°C) and line a large baking sheet with parchment paper.
- Form cookies: Using a medium cookie scoop or tablespoon, portion out about 1 ½ tablespoons of dough per cookie onto the prepared baking sheet, spacing at least 2 inches apart.
- Bake cookies: Bake for 10 to 12 minutes, or until cookies are just set with lightly golden edges. 10 minutes is ideal for soft centers. Let cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
- Make espresso icing: Warm the reserved tablespoon of browned butter if it has solidified. Combine it in the medium bowl with powdered sugar, espresso powder, vanilla bean paste, and 1 tablespoon of milk. Whisk until smooth and thick. Add more milk ½ teaspoon at a time if needed to achieve a thick but spreadable icing.
- Ice the cookies: Lightly dip or drizzle each cooled cookie with espresso icing, then return to the wire rack or a parchment-lined surface to allow the icing to harden.
- Serve: Enjoy these rich, coffee-flavored oatmeal cookies with the perfect balance of sweet vanilla and brown sugar warmth. Makes about 2 dozen cookies.
Notes
- Chilling the dough helps to develop flavors and prevent spreading during baking.
- Adjust espresso powder amount to taste for stronger or milder coffee flavor.
- If icing is too thick, add milk gradually to loosen; if too thin, add more powdered sugar.
- Store cookies in an airtight container at room temperature for up to 5 days.
- For extra texture, you can add chopped nuts or chocolate chips if desired.
- Prep Time: 20 minutes
- Cook Time: 12 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American