Chipotle Sweet Potato Mash – – sweet potatoes (use the orange fleshed ones often mis-marked "yams", peeled and chopped to 1" cubes), butter, salt and pepper (to taste), chipotle peppers in adobo sauce (chopped finely), Place a steamer basket in a pot and fill with water to just below the basket. Bring water to a boil. Place the chopped sweet potatoes in the steamer basket and steam covered for 15 to 20 minutes.; Place the cooked sweet potatoes in a bowl and mash. Add the butter, salt, pepper and chipotle. Mix completely and serve.; –