INGREDIENTS
3 cups
whole milk, divided
1/2
cup cornstarch
3/4
cup sugar
1/4 tsp
salt
1
large egg
6
large egg yolks
1
vanilla bean, split lengthwise (optional)
6 tbsp
unsalted butter, cut into chunks
3 tsp
vanilla extract
3 cups
all-purpose flour
1 1/2 tsp
baking powder
1/2
teaspoon salt
3/4 cup
(6 oz.) unsalted butter, room temperature
1 1/2 cups
sugar
4
large eggs
2 tsp
vanilla extract
1 1/4 cups
buttermilk
Sugar, for finishing