The Very Best Brownies.

Ingredients (10)

• 10 tablespoons unsalted butter, cut into 1/2-inch slices
• 1 1/4 cups cane sugar
• 3/4 cup natural unsweetened cocoa powder
• 1/2 teaspoon fine sea salt
• 1/4 teaspoon baking powder
• 1/2 teaspoon espresso powder or very finely ground coffee (optional)
• 2 cold large eggs
• 1 1/2 teaspoons vanilla extract
• 2/3 cup white whole wheat flour or flour of choice
• 2 ounces dark or semi-sweet chocolate, roughly chopped, or 1/3 cup chocolate chips