Recipe: Scalloped Potatoes

My second time ever making scalloped potatoes.   I made some long past when we were first married, but our eating habits changed and I just haven't made them again. 

Ingredients

• 3 pounds potatoes, thinly sliced
• salt and pepper to taste
• 9 tablespoons all-purpose flour, divided
• 6 tablespoons butter, diced
• 1 quart whole milk, or as needed (I used about 3.5 cups)

Directions

1. Preheat oven to 425 degrees F (220 degrees C). Grease a 9x13-inch baking dish.
2. Arrange one layer of potatoes in the bottom of the prepared baking dish. Sprinkle the potatoes with salt and pepper, 3 tablespoons flour, and 2 tablespoons butter. Repeat layering 2 more times, until all of potatoes have been used. Slowly pour milk over the potatoes until the dish is 3/4 full of milk.
3. Bake until the milk comes to a boil (check after 15 minutes), then reduce heat to 375 degrees F (190 degrees C) and bake until potatoes are tender, 45 to 60 minutes more.

 Results:

The lad: "mom!  These are good.  Thanks for cooking this"
Dad ": no onions hun?  But he finished the pot off much to my chagrin.
Mom "I like it, I should make these more often"