Ingredients
2-2/3 cups 60% cacao bittersweet chocolate baking chips1/2 cup unsalted butter, cubed4 large eggs, room temperature1-1/2 cups sugar4 teaspoons vanilla extract2 teaspoons instant espresso powder, optional2/3 cup all-purpose flour1/2 teaspoon baking powder1/4 teaspoon salt1 package (11-1/2 ounces) semisweet chocolate chunks
Preparation
Preheat oven to 350°. In a large saucepan, melt chocolate chips and butter over low heat, stirring until smooth. Remove from the heat; cool until mixture is warm.
In a small bowl, whisk the eggs, sugar, vanilla and, if desired, espresso powder until blended. Whisk into chocolate mixture. In another bowl, mix the flour, baking powder and salt; add to chocolate mixture, mixing well. Fold in chocolate chunks; let stand until mixture thickens slightly, about 10 minutes.
Drop by 1/4 cupfuls 3 in. apart onto parchment-lined baking sheets. Bake until set, 12-14 minutes. Cool on pans 1-2 minutes. Remove to wire racks to cool.
