I changed sour creme to Quark, added a shredded courgette and English mustard (as we are out of Dijon) also left out the cornstarch as it is really not needed. Ended up doing ours in the cooker as dinner was required 'immediately'. Made a lovely meal and we all enjoyed it. There are 2 adults, 1 under 5 and a 16 year old in this house and everyone was impressed.
