Who doesn’t love a challenge??🍪 Ingredients - Cooking spray - 1 cup salted butter, softened - 1 1/4 cups granulated sugar - 1/2 cup packed light brown sugar - 1 large egg - 3 Tbsp. water - 2 tsp. vanilla extract - 2 cups all-purpose flour - 1/2 tsp. baking soda - 1/2 tsp. table salt - 1/2 cup coarsely chopped semisweet chocolate (from 1 [4-oz.] bar) - 1/2 cup coarsely chopped 60% cacao bittersweet chocolate (from 1 [4-oz.] bar) - Flaky sea salt (optional) Directions 1. Preheat oven to 350°F with rack in middle position. Lightly coat 3 large rimmed baking sheets with cooking spray, and line each with aluminum foil, dull side up. Set aside. 2. Beat butter with a stand mixer fitted with a paddle attachment on medium speed until creamy, about 30 seconds. Gradually add granulated sugar and brown sugar, beating on medium speed until light and fluffy, 2 to 3 minutes. Add egg, water, and vanilla; beat on low speed just until combined, about 1 minute. 3. Whisk together flour, baking soda, and ...