Preheat oven to 375° degrees Fahrenheit (190°C).
Melt chocolate over a double boiler over the lowest heat. Add the butter and let melt together. Then add the sugar and stir to combine. Remove from the heat. Allow to cool slightly before adding the eggs.
Using a wooden spoon add the eggs, one by one, making sure each is fully incorporated before adding the next. Add the flour and stir to combine. Pour into a 9" non-stick cake pan (do not use a springform pan).
- 7 oz dark quality chocolate
- 14 tbsp unsalted butter (7 oz)
- 1 1/4 cups sugar
- 5 large eggs
- 1 tsp all-purpose flour