Coffee Lover’s Cookies

Ingredients

• COFFEE LOVER’S COOKIES
• 1 ¼ cups [225 g] semi-sweet chips
• ½ cup [113 g] unsalted butter
• ¾ cup [95 g] all-Purpose flour, spooned and leveled
• ¼ cup [20 g] Dutch-process cocoa Powder, sifted, plus more for dusting
• 1 teaspoon baking powder
• ½ teaspoon kosher salt
• 2 tablespoons instant coffee or espresso powder
• 2/3 cup [130 g] granulated sugar
• ½ cup [100 g] light brown sugar, packed
• 2 eggs, at room temperature
• ½ teaspoon vanilla extract
• Flaky sea salt, for sprinkling (optional)
• ESPRESSO BUTTERCREAM
• 1/2 cup [113 g] unsalted butter, at room temperature
• 3 cups [360 g] confectioners’ sugar, sifted, plus more as needed
• 1 ½ teaspoons vanilla extract
• 1 ½ teaspoons fine espresso powder (not granules)
• Pinch of salt
• 1 to 2 tablespoons heavy cream or whole milk, as needed