custard steam cake

Ingredients:
a)
180 g sugar
5 eggs

b)
100 ml vegetable oil
130 ml milk

c) - sifted
280g flour
80g custard powder
2 tsp baking powder
1/2 tsp baking soda

Some chocolate chip for sprinkle (optional)
1) whisk sugar and eggs till fluffy
2) fold in b and c till combine

Pour into pan/paper cup and steam on high heat for 30 minutes