Potatoes au Gratin - Cindys Recipes

Ingredients

• 3 Tbsp butter
• 2 Tbsp all-purpose flour
• 3 C milk (or half and half cream)
• 1 tsp salt
• 1/2 tsp ground black pepper
• 2 C cheddar cheese (shredded, divided)
• 1 C gruyere (shredded (can use all cheddar))
• 6 C thinly sliced potatoes (about 2 1/2 pounds)
• 1/4 C diced onion
• 1 Tbsp freshly snipped parsley