Scalloped Potatoes - Cindys Recipes

Ingredients

• 3 Tbsp butter
• 1 small white or yellow onion (peeled and thinly sliced)
• 4 large garlic cloves (minced)
• 1/4 C all-purpose flour
• 1 C chicken stock or vegetable stock
• 2 C milk (I recommend 2% or whole milk)
• 1 1/2 tsp kosher salt
• 1/2 tsp black pepper
• 2 tsp fresh thyme leaves (divided)
• 4 lb Yukon gold potatoes (sliced into 1/8-inch rounds)
• 2 C freshly-grated sharp cheddar cheese* (divided (feel free to add more cheese if you’d like))
• 1/2 C Freshly Grated Parmesan Cheese (plus extra for serving)