INGREDIENTS
1 1/2 cups
unsalted butter (3 sticks)
4 oz
bittersweet chocolate (65 percent cocoa or higher) *I use a mix of 2 ounces 100% unsweetened cocoa baking bar and 2 ounces semi-sweet chocolate chips
1 1/4 cups
granulated sugar
3
large eggs
1 tsp
vanilla
1/2 cup
plus 2 tablespoons all-purpose flour (increase to ¾ cup all-purpose flour for high-altitude)
kosher salt