Steam cucumber with crabmeat chicken

Inspired from this blog and I change some ingredients and make my own style.

Ingredients:

1 large cucumber (2 if it's small)
½ cup of chicken
½ cup of crabmeat
1 spring onion – cut small
1 tbsp of soy sauce
1 tbsp of cornstarch
Dash of salt and pepper

Sauce:

¾ cup of chicken stock

1 cap chinese rice wine
1 tbsp of oyster sauce
1 tbsp of soy sauce
¼ tsp of sugar
1 tsp of cornstarch
½ tsp of sesame oil