Chocolate Lava Cakes

Directions

1. 1
   Preheat the oven to 425 degrees F. Spray four custard cups with baking spray and place on a baking sheet.
2. 2
   Microwave the butter, bittersweet chocolate and semisweet chocolate in a large bowl on high until the butter is melted, about 1 minute.
3. 3
   Whisk until the chocolate is also melted.
4. 4
   Stir in the sugar until well blended.
5. 5
   Whisk in the eggs and egg yolks, then add the vanilla.
6. 6
   Stir in the flour.
7. 7
   Divide the mixture among the custard cups.
8. 8
   Bake until the sides are firm and the centers are soft, about 13 minutes.
9. 9
   Let stand 1 minute.
10. 10
    Invert on individual plates while warm and serve with vanilla ice cream.