Cheesy and Creamy Scalloped Potatoes with Garlic and Herbs - Yummy Gusto

Ingredients

• 4 pounds of Yukon Gold potatoes, cut into thin slices about 1/8-inch thick
• 1 small onion (yellow or white), sliced very thin after peeling
• 4 big garlic cloves, finely chopped up
• 3 tablespoons of butter
• 1/4 cup of regular all-purpose flour
• 2 cups of whole milk or you can swap in half and half if you prefer
• 1 cup of chicken or veggie broth
• 2 cups of sharp cheddar cheese, freshly shredded
• 1/2 cup of Parmesan cheese, also freshly grated, plus extra if you’d like for serving
• 1/2 teaspoon of black pepper
• 1 1/2 teaspoons of kosher salt
• 2 teaspoons of fresh thyme leaves, split into two portions