Molten Lava Cake

Preheat oven to 400 and butter one small cup
1/4 Cup coacoa	Whisk in small bowl	Mix	Bake 8-10 mins	Serve with vanilla ice cream
1/3 Stick butter
1 Large egg	Whisk in small bowl
1/9 cup + 1 TB sugar
1/3 tsp vanilla
1/12 tsp salt
1/9 cup flour