Salted Chocolate Caramel Pie with Pretzel Crust

INGREDIENTS

2 cups

mini pretzels

1/4 cup

light brown sugar

2 tbsp

granulated sugar

1/4 cup

non-fat dry milk powder

1 tbsp

malt powder

9 tbsp

(127-141 grams) butter, divided

1 1/2 cups

granulated sugar

1/8 tsp

cream of tartar

1/3 cup

water

6 tbsp

chilled unsalted butter, cut into pieces

1/3 cup

heavy cream

1 tsp

kosher salt, preferably Diamond Crystal

6 oz

bittersweet chocolate, coarsely chopped or discs (60-70% cacao)

3/4 cup

heavy cream

3 tbsp

unsalted butter, cut into small pieces

Flaky sea salt such as Maldon, for finishing