Triple Chocolate, Coconut, and Cashew Cookies

Ingredients

• 1 cup (7½ oz/200 g) packed light brown sugar
• ¾ cup (6 oz/170 g) granulated sugar
• 1 cup (2 sticks) unsalted butter, melted and cooled to room temperature
• 2 cups (8½ oz/240 g) whole-wheat flour, spooned and leveled
• ¼ cup unsweetened natural cocoa powder (not Dutch process)
• 1 tablespoon instant espresso
• 1½ teaspoons kosher salt, or ¾ teaspoon fine sea salt
• 1 teaspoon baking soda
• 2 large eggs
• 2 teaspoons vanilla extract
• 1 cup (6 oz/170 g) semisweet or bittersweet chocolate chips
• 1 cup (6 oz/170 g) white chocolate chips
• 1 cup (5½ oz/155 g) roasted, unsalted cashews, chopped
• 1 cup (3 oz/85 g) unsweetened shredded coconut, toasted if desired
• 1 teaspoon flaky sea salt, for sprinkling

Instructions

1. If baking right away, preheat the oven to 375°F (190°C) with a rack in the center. Whisk both sugars in a large bowl, breaking up any lumps. Add the melted butter and whisk vigorously for about 1 minute to dissolve the sugar. Scrape down the bowl and let sit for at least 10 minutes.
2. Whisk the flour, cocoa powder, espresso, kosher salt, and baking soda in a medium bowl. Whisk one egg into the sugar-butter mixture until fully incorporated, then whisk in the second egg and vanilla.
3. Add the dry ingredients to the wet mixture and stir until no dry streaks remain. Fold in both kinds of chocolate chips, the cooled toasted cashews, and the coconut. Refrigerate the dough for at least 10 minutes.
4. Scoop the dough into 1½-ounce (43-g) portions onto parchment-lined baking sheets. For immediate baking, space the balls 3 inches (7.5 cm) apart, sprinkle with flaky sea salt, and bake for 8 to 11 minutes, until the edges are set and the cookies look matte. Cool on the sheets for 5 minutes, then transfer to a wire rack.
5. For deeper flavor, chill the scooped dough tightly wrapped for at least 4 hours and up to 3 days, or freeze for up to 1 month. Bake chilled dough at 375°F (190°C) for 14 to 18 minutes, until set at the edges and beginning to turn golden brown. Cool as directed.