Scalloped Potatoes Recipe with Leeks and Thyme

INGREDIENTS

2 tbsp

butter plus more for baking dish

1 cup

finely chopped leeks (if needed, sweet onion may be substituted)

2 cloves

garlic, grated/minced

1 tsp

dried thyme

1 cup

whole milk

1 cup

heavy cream

2 tsp

kosher salt

1/2 tsp

ground black pepper

2 1/2 lb

yellow/golden potatoes, peeled and sliced thin