Ingredients:
1/2 minced white onion
2 minced garlic cloves
2 tablespoons butter plus more for greasing the baking dish
1/2 tsp. chicken stock
1 1/4 tsp. heavy cream and more if needed
1 1/2 pounds russet potatoes, peeled and sliced 1/8 inch thick
3/4 tsp. grated provolone cheese
1/2 tsp. Grated parmesan cheese
2 bed. grated cheddar cheese
Chopped fresh parsley, for garnish