In two batches, so it's not too full, pour the soup into a powerful blender
and blend on high until it's completely smooth. (I use the blender for this soup because I love it super, silky smooth -- however, you can also use an immersion blender
, and get close to the same effect.) Please note that when you blend hot liquids in the blender, you have to hold down the lid very firmly. If you don't, the hot liquid, vibration, and steam can force the lid off.