Everyday Food editor Sarah Carey makes a delightfully zesty cookie that’s sure to become a new family favorite and shows you how to know when butter’s at the perfect room temperature.
Preheat oven to 350 degrees, with racks in upper and lower thirds. Whisk together flour, baking powder, and salt. In a large bowl, using an electric mixer, beat butter, granulated sugar, 1 tablespoon orange zest, and 2 teaspoons lemon zest on medium-high until pale and fluffy, 3 minutes, scraping down bowl as needed. Beat in eggs, one at a time. Add flour mixture; beat to combine.
Roll dough into 1-inch balls and place, 2 inches apart, on parchment-lined baking sheets. Bake until edges are lightly golden, 12 to 15 minutes, rotating sheets halfway through. Let cool on sheets on wire racks 5 minutes, then transfer cookies to racks and let cool completely.
Whisk together 1 tablespoon orange zest, 2 teaspoons lemon zest, citrus juices, and confectioners' sugar until smooth. With a small spoon, spread glaze over each cookie. Let set 1 hour.
Store in airtight containers, up to 3 days.