Ingredients
Instructions
- Melt chocolate and butter together in a double boiler and allow to cool slightly.
- In a large bowl, whisk eggs, salt, lemon zest, sugar and vanilla. Whisk in chocolate mixture slowly. Fold in flour, then blueberries.
- Pour batter into greased 9x13 inch baking pan, bake for 40 minutes at 325 degrees.
- Let cool before cutting to prevent too much breakage.