REMOVE milk from refrigerator; let STAND at room temperature.
PEEL sweet potatoes; CUT into large chunks.
PLACE potato chunks into saucepan; FILL with enough salted water to cover.
BRING potatoes to a boil; REDUCE heat; COVER; let BOIL until very tender, about 25 minutes.
ADD butter, brown sugar, salt and spices to the potatoes.
Partially MASH with a hand masher; ADD 2/3 of warmed milk; continue to MASH until blended but lumpy.
ADD remaining milk; BLEND to desired consistency; TRANSFER to a warm dish; SERVE immediately.
Per Serving (excluding unknown items): 272 Calories; 12g Fat (40.0% calories from fat); 3g Protein; 39g Carbohydrate; 4g Dietary Fiber; 33mg Cholesterol; 409mg Sodium. Exchanges: 2 Grain(Starch); 0 Non-Fat Milk; 2 1/2 Fat; 1/2 Other Carbohydrates.