INGREDIENTS
2 cloves
Garlic
2
lbs Russet potatoes
2 tsp
Thyme, fresh leaves
1
Yellow onion
1/2 cup
Chicken broth, low-sodium
1/2 tsp
Black pepper, ground
1 1/2 tsp
Kosher salt
1 tbsp
Butter, unsalted
1/2 cup
Cheddar
1/2 cup
Gruyere cheese
1 1/2 cups
Heavy cream