Remove the thick bottom of the stems from the kale and place the leaves in a large pot with steamer. Steam 10 minutes, until soft. Remove from steamer, placing in wooden chopping bowl. Press the kale together in the bowl with a dish towel and tilt over the sink to remove some of the excess water.
Add the remaining ingredients to the blender and blend until smooth. Chop the kale, mixing it with the cream sauce as you chop.