SERVICE NOTICE: Please be advised that your order may take longer to receive due to carrier volume issues and increased processing time due to pandemic protocols. Thank you for your understanding and patience.
Heat oven to 350° F. Grease 2 qt. casserole with shortening or cooking spray.
In a saucepan, melt 3 Tbsp. of the butter over medium heat. Cook onion in butter about 2 minutes, stirring occasionally, until tender. Stir in flour, salt, and pepper. Cook, stirring constantly, until smooth. Remove from heat. Stir in milk. Heat to boiling, stirring constantly. Boil and stir 1 minute.
Spread potatoes in casserole. Pour sauce over potatoes. Cut remaining 1 Tbsp. butter into small pieces; sprinkle over potatoes.
Cover; bake 30 minutes. Uncover; bake 1 hour or until potatoes are tender. Let stand 5-10 minute before serving.
Food for Thought
Think about Ham Base. Blending a little RBC Ham Base into the milk will give these potatoes a great flavor. Think 1 tsp. of the base to each cup of milk.