Slow-Cooker Scalloped Potatoes

INGREDIENTS

1 cup

heavy cream or half and half

1/4 cup

low-sodium chicken broth

1 pinch

paprika

1/4 tsp

ground nutmeg

2 tbsp

fresh thyme leaves, plus more for garnish

2 tbsp

freshly chopped rosemary, plus more for garnish

2 tsp

garlic powder

3 lb

russet potatoes, sliced 1/4" thick

1/2 cup

freshly grated Parmesan

2 1/2 cups

shredded Gruyère

kosher salt

Freshly ground black pepper