INGREDIENTS
1 stick
unsalted butter, softened
1 1/3 cups
packed dark brown sugar
2 tsp
pure vanilla extract
2
eggs, at room temperature
1 cup
+ 2 tablespoons (145 g) all-purpose flour
1/2 cup
Dutch-process dark cocoa powder
3/4 tsp
baking powder
3/4 tsp
kosher salt
3/4 cup
buttermilk, shaken and warm
1/4 cup
coffee or espresso
3 tbsp
mayonnaise
1/3 cup
premium dark or extra dark chocolate chips
3/4 tsp
baking soda
2 tsp
white vinegar
2 tbsp
cold water
2 tsp
unflavoured gelatin (such as Knox brand)
1 3/4 cups
whipping cream (35-37% fat), cold, divided
1/4 cup
icing sugar
1 tsp
pure vanilla extract
salt
6 oz
premium dark or extra dark chocolate, chopped
1 stick
unsalted butter
1 tbsp
light corn syrup
Splash of liqueur of choice, optional (grand marnier, spiced rum, kahlua, etc.)
sea salt (regular salt, if necessary)