If you don't find creamed sweet corn, just take a regular sweet corn tin and blend it to fine bits. Don't make it all liquidy. It should be chunky yet liquidy.
If I am in a hurry and I don't have chicken stock at hand, instead of using Knorr Yakhni or Chicken Stock, what I do is take a big pot, pour 10 glasses of water in it, throw in roughly chopped carrots, spring onions and ginger, salt, black pepper and white pepper along with chicken pieces. Cook on medium to ow flame for 30 minutes.
Once the soup is reduced to 8 cups, I take out the chicken with bone pieces and discard the bones, shred the chicken to fine bits and set aside.
Strain the whole solution, discard the veggies.
Then pour the stock into a pot. Throw in chicken bits, throw in creamed sweet corn, cook for 10 minutes.
Then thicken it with corn flour and add lastly add the egg. Soup ready in less than an hour :D