INGREDIENTS
•
1/2 cup (113 grams) unsalted butter
•
6 ounces (170 grams) semi-sweet or bittersweet chocolate
•
3 large eggs
•
1/3 cup (65 grams) granulated white sugar
•
1 teaspoon pure vanilla extract
•
1/8 teaspoon cream of tartar
•
1 tablespoon granulated white sugar