2 medium sweet potatoes, cut into 2-inch chunks
1/2 cup milk
3 Tbsp butter
salt and pepper to taste
Place sweet potatoes in a large saucepan, and add water to cover. Bring to a boil until potatoes are cooked and fork tender. Drain, and return to saucepan. In a small saucepan, bring milk and butter to a simmer, stirring to combine. Remove from heat. Add to drained sweet potatoes, and mash until smooth. Season with salt and pepper to taste.