Sweet potatoes are a powerhouse vegetable packed with flavor and nutrition. Skip the marshmallows, brown sugar or maple syrup. They don’t need it. Simply simmer until tender, then drain, mash and add a little butter or olive oil. Fresh chopped rosemary is a nice addition. Mashed sweet potatoes make a healthy side dish any time of the year.
Peel sweet potatoes. If they are large, cut them in half crosswise to make them more manageable. Trim a piece from the long side of the sweet potato to create a flat surface. Place the flat surface on the cutting board for stability and cut the potato into planks about 1″ in width. Then cut the planks into the same size diced potatoes.
Place the potatoes into a medium saucepan or pot and cover with cold water. Bring to a simmer over medium heat. Turn down if needed once the potatoes are cooking. You don’t want to boil them (they will fall apart). Cook until the potatoes are very soft when pierced with a sharp knife tip.
Drain the potatoes and place them back in the pan on the warm (but turned off) burner for a few minutes.This will steam off excess moisture. Mash the potatoes with an electric handheld mixer or an immersion blender with the whip attachment. Add butter or olive oil and rosemary. Serve warm.
To save time, make the sweet potatoes a day ahead and warm before serving. To heat, place the sweet potatoes in a medium glass or stainless steel bowl over a pan with simmering water. Cover with foil and heat until hot, stirring occasionally. Alternatively place in a warm oven.