Preheat oven to 375 degrees. Butter bottom and sides of 4 one cup ramekins.
2
Melt chocolate and butter in a double boiler over low heat. (you can probably do this in the microwave) Remove from heat and let cool.
3
Whisk together eggs, sugar and flour until frothy. Pour melted chocolate into egg mixture, stir until smooth and well combined.
4
Spoon mixture into your ramekins.
Place ramekins on a baking sheet and bake for 20 minutes. Remove from oven and let cool for 10 minutes before trying to eat. Caution, the gooey middle will be HOT!