Parmesan Crusted Scalloped Potatoes

INGREDIENTS

2 tbsp

unsalted butter

small yellow onion, diced

2 cloves

garlic, minced

2 cups

heavy cream

1/2 cup

low-sodium vegetable broth

1 1/2 tsp

kosher salt

1/2 tsp

ground black pepper

2 lb

russet potatoes, sliced into 1/8-inch slices

1 1/2 cups

shredded Cheddar cheese

1 cup

shredded Gruyere cheese

4 tbsp

melted butter

3/4 cup

Panko bread crumbs

1/2 cup

freshly grated Parmesan cheese