INGREDIENTS
4 cups
plus 2 tablespoons (480 grams) cake flour (or all-purpose flour)
2 tsp
baking powder
1 1/2 tsp
baking soda
1 tsp
table salt
2 sticks
(1 cup, 1/2 pound or 225 grams) unsalted butter, softened
2 cups
sugar
2 tsp
pure vanilla extract
4
large eggs, at room temperature
2 cups
buttermilk (475 ml), well-shaken (you can substitute whole milk + 2 tablespoons lemon juice or white vinegar)
1 cup
mini semi-sweet chocolate chips
1 1/3 cups
heavy cream
1 tsp
espresso powder (optional)
1 cup
sugar
6 oz
unsweetened chocolate
1 stick
plus 2 tablespoons unsalted butter
1 1/2 tsp
vanilla extract
1/8 tsp
salt