Ingredients

Cake:

4½ cups all-purpose flour (plus another ½ cup or so for dusting the counter when rolling out the cake layers)
½ teaspoon salt
3½ sticks butter, cold
¾ cup chilled water
1 Tablespoon distilled white vinegar
2 Tablespoons vodka
2 eggs, beaten

Pastry Cream:

5 cups milk
10 egg yolks
¾-1 cup granulated sugar
6 Tablespoons cornstarch

Cake Frosting:

2½ sticks butter, room temperature
¾ cups powdered sugar
2 teaspoons vanilla extract
1½ cups heavy cream