Corned Beef Potato Salad with sprinkles

1 lb white potato 1/2 teaspoon salt , to taste (corned beef is already salty) 1/2 teaspoon black pepper 2 -3 teaspoons vegetable oil 1/2 cup yellow onion ,[...]

5 large baking potatoes , peeled, and cut into cubes 1/3 cup sour cream (low-fat is okay) 1/4 cup milk (1% is okay) salt and pepper 2 tablespoons oil 5 cups[...]

16 rhodes frozen dinner rolls, thawed to room temperature 2 medium size yellow onions , thinly sliced 1 tablespoon olive oil 1 tablespoon fresh thyme leave 2[...]