→ Main Ingredients
01 -
4 pounds Yukon Gold Potatoes, cut into thin 1/8-inch circles
02 -
1 small yellow or white onion, sliced paper-thin
03 -
4 big garlic cloves, finely chopped
→ For the Sauce
04 -
3 tablespoons butter
05 -
1/4 cup all-purpose flour
06 -
1 cup chicken or veggie stock
07 -
2 cups whole milk (or sub half and half)
→ Cheese
08 -
2 cups freshly-shredded sharp cheddar cheese
09 -
1/2 cup freshly-shredded Parmesan cheese, with extra for topping
→ Seasonings
10 -
1 1/2 teaspoons Kosher salt
11 -
1/2 teaspoon black pepper
12 -
2 teaspoons fresh thyme leaves, split in half