Lacy Oatmeal Cookie
Ingredients
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- 8 tablespoons unsalted butter
- 3/4 cup light brown sugar – packed
- 1/4 cup granulated sugar
- 1 large egg
- 1 teaspoon vanilla extract
- 2 tablespoons all-purpose flour
- 1/4 teaspoon salt
- 3/4 cup quick-cooking oats
Instructions
1. Heat the oven to 350°F (175°C). Line 2 baking sheets with parchment paper.
2. Melt the butter in a medium saucepan over medium heat, then remove from the heat.
3. Whisk in the light brown sugar and granulated sugar until glossy and mostly dissolved, 30–60 seconds. Let cool 2 minutes.
4. Whisk in the egg and vanilla extract until the mixture is smooth and cohesive.
5. Sprinkle the all-purpose flour and salt over the mixture and whisk until combined.
6. Stir in the quick-cooking oats until evenly moistened. Let the batter rest 5–10 minutes to hydrate and thicken slightly.
7. Scoop level 1-teaspoon portions onto the prepared sheets, spacing them at least 3 inches apart (about 12 per sheet). If the batter thickens as it stands, stir briefly to loosen.
8. Bake one sheet at a time until the cookies have spread very thin and are golden with deeper caramelized edges, 6–8 minutes, rotating the pan once if needed for even color. Doneness cue: the edges should be deep amber and the centers lacy.
9. Cool on the sheet until edges are set but centers are still pliable, 3–5 minutes. Lift with a thin spatula to a wire rack and cool completely until crisp, about 10 minutes. Repeat with remaining batter.
10. Store fully cooled cookies in an airtight container at room temperature to maintain crispness.
Lacy oatmeal cookies are ultra-thin, crisp-edged wafers with a delicate, netted texture and a deep caramel flavor. Butter and sugar create a toffee-like snap, while a touch of flour and tender oats give the cookies their signature lacy webbing. They look refined but eat like a nostalgic treat—light, crunchy, and impossible to stop at one.
These cookies trace their lineage to European nut lace wafers and American oatmeal baking traditions, eventually finding a strong foothold in Southern home kitchens. As refined sugar and rolled oats became pantry staples in the 20th century, the oatmeal lace style spread through church cookbooks and newspaper columns. Today they remain a beloved holiday and gifting cookie, often served plain or sandwiched around chocolate or jam.