Preheat the oven to 200 ° C (top / bottom heat). Put the cream in a saucepan, refill the cream cups with water and add to the cream so that there is approx. 1200 ml of liquid in the saucepan. Then fill a beaker with cold water again and stir in the starch here.
Bring the cream to the boil, stir in the spices, instant stock and chives, finally stir in the starch-water mixture and bring to the boil again, cook for about a minute.
In the meantime, dice the ham and place in a sufficiently large baking dish with the pasta. Pour the cream mixture over the pasta and mix everything again, sprinkle the cheese on top and bake the casserole for approx. 35 minutes at 200 ° C.