Mississippi Mud Pie

INGREDIENTS

Oreo cookies ((one 15.3 oz pkg))

5 tbsp

unsalted butter (, melted)

6 oz

bittersweet chocolate chips or chopped chocolate ((1 cup. I recommend Ghirardelli))

1/4 cup

unsalted butter

1/4 cup

water (, at room temperature)

1 tbsp

unsweetened cocoa powder

1/4 tsp

salt

1 tbsp

vanilla extract

large eggs at room temperature (, separated)

1/2 cup

packed light-brown sugar

1/2 cup

granulated sugar

3/4 cup

granulated sugar

1/2 cup

unsweetened cocoa powder

1/3 cup

cornstarch

1/4 tsp

salt

large egg yolks

2 1/2 cups

whole milk

3 tbsp

unsalted butter

3 oz

bittersweet chocolate chips or chopped chocolate ((1/2 cup))

2 tsp

vanilla extract

1 1/4 cups

heavy cream

3 tbsp

granulated sugar