• Get out all of your ingredients and get them measured and ready to go!
  
• Slice your potatoes to between ⅛ and ¼ inch thick. Rinse and set aside.
  
• Preheat your oven to 425 degrees.
• Melt butter in large pot over medium heat.
• Add onion and cook until tender, stirring occasionally, about 5 minutes.
  
• Add garlic, thyme, salt, and pepper. Stir.
  
• Add potatoes, chicken broth and cream.
  
• Cover, reduce heat to medium-low, and simmer until potatoes are almost tender, about 10 minutes.

Au Gratin Potatoes or Potatoes with Cheese

• Dump mixture into a bowl, or just use the same pot OFF HEAT, and add cheeses and gently stir until blended. You want the cheese spread evenly throughout the dish. 
  
• Transfer mixture to an 8x8 inch baking dish or the equivalent. Press into an even layer.
  
• Sprinkle evenly with cheese of your choice. We always put the cheddar on first and the parmesan on top.
  
• Bake until cream is bubbling around edges and top is golden brown, about 15 minutes.
  
• Broil if necessary to brown the cheese to your liking.
• Allow to stand or rest for 10 minutes before serving.
• Serve and enjoy!
  
• Ultimately, baking time will depend on how thinly you were able to slice your potatoes so please adjust your cooking time accordingly. Poke your potato dish with a knife or fork and once your potatoes are tender, and the cheese is melted to your liking on top, your dish is ready to eat!