Caramelized Onion-Mashed Potato Bake

Caramelized Onion-Mashed Potato Bake

Baking mashed potatoes makes serving them to a crowd much easier because they don’t have to be served immediately after mashing. The caramelized onions and cheese make this recipe a perfect side dish for neighborhood gatherings. Caramelized Onion-Mashed Potato Bake 4 lb russet potatoes 3 tsp table salt, divided 1¼ cups warm buttermilk ½ cup…