Cora's Twice-Baked Potatoes

Lg. baking potatoes, baked
Grated cheese, Velveeta works well, to taste
Chopped onions
Salt and pepper
Milk
Optional: to taste sour cream

Cut potatoes in half lengthwise. Hollow out potatoes and place in bowl (mixer). Mash, adding milk and sour cream to make a soft consistency. Add salt and pepper, grated cheese, and onions to the mixture. Return to shells and place on baking sheet. Bake at 350° until warmed through and top is browned. Garnish with chives or parsley.