INGREDIENTS
1
Egg, large
3/4 cup
All-purpose flour
1/2 tsp
Baking powder
3/4 tsp
Baking soda
3 oz
Dark chocolate or semi-sweet chocolate
1/3 cup
Dutch cocoa powder
3/4 cup
Granulated sugar, white
2 cups
Powdered sugar
1/2 tsp
Salt
1
Sea salt, Flaked
1 3/4 tsp
Vanilla
1 1/2 tsp
Olive oil
1 tsp
Espresso, instant powder
3/4 cup
Butter, unsalted
1 1/2 tbsp
Cream or milk
1/3 cup, plus 1 tablespoon, warm water