Fill a pot with 1-2 inches of water then place a steamer basket in it. Place the pot on the stove and turn the heat on to medium-high.
Wash, peel and dice 1 cup of sweet potato. Wash, de-seed and dice 1 cup of red bell peppers.
Add the sweet potato to the steamer basket and cover the pot with a lid. Steam for 5 minutes.
Add the red pepper to the steamer basket and cook, covered, for an additional 10 minutes, or until the sweet potato is soft.
Let the sweet potato and red pepper cool down slightly. Then add them, along with the cumin, to a blender. Blend until smooth, adding just enough liquid to get your blender going. Slowly add more liquid as needed to reach your desired consistency.