Method:
Place potatoes in a saucepot and cover with cold water. Bring to a boil. Reduce heat and simmer until potatoes are very tender. Drain potatoes and return to pot. Stir over low heat until potatoes are falling apart and slightly dry. Remove from heat and mash potatoes or purée with a ricer until smooth.
Meanwhile, heat a large skillet over medium heat. Add onion and cook, stirring frequently, about 5 minutes or until lightly browned and beginning to stick to pan. Stir in broth and garlic and continue to cook, stirring frequently, 6 to 8 minutes or until onions are tender and golden.
Add onion mixture, nondairy beverage, nutritional yeast, granulated onion and pepper to pot with potatoes and stir until combined. Serve immediately.