Cookie Dough Ice Cream Sandwiches

INGREDIENTS

2 cups

heavy cream, divided

1 cup

whole milk

1/2 cup

packed light brown sugar

1/4 cup

packed dark brown sugar

fine sea salt

large egg yolks

1 tsp

vanilla extract or paste

12 tbsp

unsalted butter, at cool room temperature

1/4 cup

granulated sugar

3/4 cup

packed light brown sugar

2 tbsp

packed dark brown sugar

1 tsp

vanilla extract

1/2 tsp

fine sea salt

1 1/4 cups

all-purpose flour*

1 tbsp

milk or cream

1/2 cup

mini semisweet chocolate chips