World Peace Chocolate Cookies

Ingredients

• 1 1/4 cups all-purpose flour
• 1/3 cup unsweetened cocoa powder
• 1/2 teaspoon baking soda
• 1/2 cup plus 3 Tablespoons unsalted butter (at room temperature)
• 2/3 cup firmly packed brown sugar
• 1/4 cup granulated sugar
• 1/2 teaspoon fleur de sel or 1/4 teaspoon fine sea salt
• 1 teaspoon pure vanilla
• 5 ounces bittersweet chocolate (chopped into chips)