INGREDIENTS
Cake:
9 oz
unbleached all-purpose flour (about 2 cups)
1 cup
granulated sugar
1 cup
packed dark brown sugar
3/4 cup
unsweetened cocoa
1 1/2 tsp
baking soda
1 1/2 tsp
baking powder
1/2 tsp
salt
1 cup
canola mayonnaise (such as Hellmann's)
3 tbsp
canola oil
1 cup
hot strong brewed coffee
2 tsp
vanilla extract
1/3 cup
semisweet chocolate chips
Cooking spray
Topping:
9 tbsp
sugar
1/4 tsp
cream of tartar
1/4 tsp
salt
6
large egg whites
1/3 cup
light chocolate syrup