4 Large eggs, at room temperature
6 oz. Blackberries
6 oz. Raspberries
2 oz. Semisweet or bittersweet chocolate, finely chopped
1 tsp. Vanilla extract
1/2 cup Firmly packed light brown sugar
1 1/4 cups Granulated sugar
1 cup Unsalted butter, cut into tablespoon-sized pieces
1/4 tsp. Sea salt
1/2 cup Sifted Dutch-processed cocoa
1 1/4 cups All-purpose flour
6 oz. Blackberries
1 tbsp. Blackberry brandy, optional
3 tbsp. Unsalted butter, at room temperature
1/2 cup Heavy cream
7 oz. Semisweet or bittersweet chocolate, finely chopped