If your beet is not steamed, simply add 2 inches of water to a pot, a steamer basket, and about 2 quartered beets. Place lid on and bring the water to a gentle boil. Steam the beets for about 12-15 minutes, or until fork-tender (the size of pieces will determine how long). Once fork tender, mash with a fork or blend in a food processor for super-smooth beet puree.