Chocolate Custard Pie - cooking recipe

Ingredients

4 cups whole milk
2 cups of sugar
6 large egg yolks
3 tablespoons of butter
4 ounces of unsweetened baking chocolate, melted
1 teaspoon vanilla extract
1/4 cup of cold water
1 (9-inch) pie crust, baked

Preparation

In a heavy-bottomed 2-qt. saucepan over medium-low heat, heat milk slowly.