For the Graham Cracker Cake:
250 grams unsalted butter (about 2 sticks plus 1 3/4 tablespoons), sliced, plus more for greasing
150 grams graham crackers (about 10 whole crackers)
450 grams sugar
300 grams cake flour
30 grams baking powder
3 grams fine sea salt
260 grams room temperature whole milk
145 grams buttermilk
10 large egg yolks, whites reserved for Bourbon Marshmallow (see below)
12 grams vanilla paste

For the Caramelized Condensed Milk (AKA Dulce de Leche):
1 (396-gram) can condensed milk (see note above)

For the Blender Chocolate Mousse:
4 large eggs
500 grams heavy cream
1 (396-grams) can Caramelized Condensed Milk, from above
6 grams fine sea salt
750 grams bittersweet chocolate chips

For the Bourbon Marshmallow Topping:
10 large egg whites, reserved from above
2 grams cream of tartar
2.5 grams salt
200 grams corn syrup
50 grams water
300 grams sugar
30 grams bourbon
5 grams vanilla paste