Copycat Fleming's Potatoes

INGREDIENTS

3 tbsp

butter

1/4 cup

fresh jalapeno peppers, seeded and finely diced

1/2 cup

leeks, cleaned, ends cut off, use bottom three inches, 1/2-inch dice

2 cloves

garlic, minced

1 tsp

kosher salt

1/2 tsp

black pepper, fine grind

1 1/4 cups

heavy cream

1 cup

half and half

4 oz

Cheddar cheese, grated

4 oz

Jack cheese, grated

large Idaho russet potatoes, peeled and sliced into thin rounds (about 1/16-inch thick)