Caramelized Onion Mashed Potatoes without crumbs

3 large onions , peeled, halved and sliced in the food processor 2 tablespoons butter 2 tablespoons olive oil 6 garlic cloves , sliced 1 teaspoon pepper 1[...]

1 tablespoon canola oil 2 large onions , thinly sliced 1 teaspoon salt , divided 1 1/2 lbs medium red potatoes, quartered 3 garlic cloves , peeled and halved[...]

3 lbs yukon gold potatoes , peeled and quartered 1 3/4 teaspoons salt , divided 2 tablespoons butter or 2 tablespoons margarine 1 tablespoon olive oil 2[...]