Good-Cooking - Individual Volcano Cakes

Ingredients

• 1 1/2 cups granulated sugar
• 1/2 cup water
• Pinch of cream of tartar
• 1/2 cup cream
• 4 tablespoons unsalted butter
• 8 (1 ounce) squares semisweet chocolate
• 1/2 cup unsalted butter
• 3 whole eggs
• 3 egg yolks
• 1/3 cup granulated sugar
• 2 teaspoons vanilla extract
• 3/4 cup flour
• 1 cup cream
• 1/2 cup granulated sugar