Brownie Cookies with Early Grey Glaze
½ cup (1 stick) butter, softened
¾ cup granulated sugar
½ tsp. vanilla extract
1½ cups flour
⅓ cup unsweetened cocoa powder
¼ tsp. baking powder
¼ tsp. kosher salt
¼ cup water, plus more to thin the icing
30 g. meringue powder*
½ Tbsp. corn syrup
½ tsp. bergamot extract
1 lb. powdered sugar
¼ tsp. ground Earl Grey tea leaves (from a teabag)
• In a large bowl, cream together the butter and sugar with an electric mixer on high speed until fluffy, about 5 minutes. Add the egg and vanilla and beat on low speed, scraping down the sides of the bowl as needed. Add the flour, cocoa powder, baking powder and salt and beat on low speed until well combined. Wrap the dough in plastic and chill at least 1 hour.
• Preheat the oven to 350 degrees. Line a baking sheet with parchment paper.
Sprinkle a clean work surface with flour and roll the chilled cookie dough to ¼-inch thickness. Cut into desired shapes and place on the baking sheet.
• Bake 8 to 11 minutes, until the edges are firm and the center is slightly soft and puffed. Let cool completely on a wire rack.
• Meanwhile, make the glaze: In a medium bowl, beat together the water and meringue powder with an electric mixer on medium speed until frothy, about 1 minute. Add the corn syrup and bergamot and mix 5 seconds. Add the powdered sugar and tea leaves and mix on low speed. The mixture will be very stiff. Add water 1 splash at a time until the frosting has a toothpaste-like consistency.
• Transfer half the icing to a piping bag fitted with a round decorating tip. Carefully outline the cookies with the stiff icing.
• Transfer any icing remaining in the piping bag back to the bowl. Add water 1 teaspoon at a time until the icing reaches a glaze-like consistency. Frost inside the outlines as desired. Let dry for a few hours before enjoying.