INGREDIENTS
4
Eggs, large
3 cups
All-purpose flour
1 tsp
Baking powder
1 tsp
Baking soda
1 lb
Chocolate, semisweet
1 5/8 cups
Cocoa powder, unsweetened Dutch-process
1/2 cup
Confectioner's sugar
2 1/4 cups
Granulated sugar
1 1/4 tsp
Salt, coarse
1
Generous pinch Salt, coarse
1 1/3 tbsp
Vanilla extract, pure
2 1/2 cups
Butter, unsalted
1 cup
Sour cream
1 5/8 cups
Water, hot
Flame Tuiles, for decorating