Brown Butter Salted Cornflake Cookies

Preheat oven to 375°F with racks in upper and lower third positions.

In a small bowl, whisk flour, salt, and baking soda.

Melt butter in a small saucepan over medium heat. Cook, swirling pan occasionally, until butter browns and smells nutty, 6 to 8 minutes. Transfer to a large heatproof bowl. Add sugars and whisk until well combined. Add eggs and vanilla, whisk until smooth. Fold in flour mixture and cornflakes until just combined.

Scoop rounded tablespoons of dough onto parchment-lined baking sheets, spacing 2 inches apart. Sprinkle top of each cookie with a pinch of flaky salt. Bake, rotating pans and rack positions halfway through, until lightly browned around edges, 8 to 10 minutes. Let cool completely on pans.