Mashed Potatoes with tenders

1 1/2 lbs russet potatoes , peeled, rinsed, cut into large chunks 3/4 lb carrot , trimmed, cut into 2-inch pieces 1 1/2 tablespoons unsalted butter , softened[...]

3 ears fresh corn or 1 cup frozen corn 1 lb yellow potato , peeled and cut in 1 inch cubes 1 lb red potatoes, peeled and cut in 1 inch cubes 3 medium carrots[...]

3 lbs yukon gold potatoes , peeled and cut into 2-inch pieces 1 lb celery root , peeled and cut into 2-inch pieces 2 garlic cloves , sliced 1 cup light cream[...]

2 lbs russet potatoes , peeled and quartered 1 lb celery root , peeled and cut in chunks salt and pepper 1/3 cup light cream 1 Place the potatoes and celery[...]

6 tablespoons butter 3 large onions , halved and sliced 2 tablespoons chopped fresh rosemary or 2 teaspoons dried rosemary 6 parsnips or 6 turnips or 6[...]

6 tablespoons butter 3 large onions , halved and sliced 2 tablespoons chopped fresh rosemary or 2 teaspoons dried rosemary 6 parsnips or 6 turnips or 6[...]