Step 1

Preheat oven to 350F. Grease a 9-inch pie pan and set aside.

Step 2

Add unsweetened chocolate and butter in a saucepan over low heat. Stir until the chocolate and butter melts completely and remove from heat.

Step 3

Whisk in sugar, flour, vanilla and eggs.

Step 4

Pour batter into pie pan and bake for 27 minutes. Serve warm with desired toppings.