Make-Ahead Mashed Potatoes

10 large potatoes, peeled & quatered
1 cup sour cream
1 pkg (8oz) cream cheese, softened
6 T butter or margarine
1 tsp onion powder
1 tsp salt

If made ahead, let stand at room temp 30 min before baking.

Bring potatoes & water to a boil in Dutch oven. Reduce heat; cover & cook 20-25 min or until potatoes are tender. Drain and mash. Add sour cream, cream cheese, butter, onion powder, & salt; stir until smooth and cream cheese & butter are melted. Spread in greased 9x13x2 dish. Bake, uncovered at 350 degrees for 40 min; uncover and back 20 more minutes.

Serves 12