INGREDIENTS
3/4 cup
Beet puree
2
Eggs, large
1 1/4 cups
All-purpose flour
1/2 tsp
Baking powder
3/4 tsp
Baking soda
2 oz
Bittersweet chocolate
3/4 cup
Cocoa powder, Dutch-process
1/2 tsp
Kosher salt
1 pinch
Kosher salt
1 1/3 cups
Sugar
8 oz
Swemisweet chocolate
4 tbsp
Butter, unsalted
1/2 cup
Buttermilk
1/2 cup
Sour cream