How to make Apam Balik! (Malaysian Pancake)!!

Apam Balik
Ingredients
220 g plain flour
1/2 tsp baking soda
50g sugar
3/4 tsp instant yeast
310ml water
2 eggs

Filling
120g ground peanut ,roasted and grinded.
some caster sugar
some sweet corn in cream style
some butter

Method:
1.Sift the plain flour into a mixing bowl.
2.Add in the yeast,sugar and baking soda mix well .
3.Add in water and egg. Stir until everything mixed well . Cover it with cling paper and leave it rest for 30 minutes. The batter should be bubbling before cooking.
4.Heat the pan , coat with a very thin layer of butter (this step only do once). Pour the batter into the pan ,smooth out to get an even thickness.Cover with lid for about 5 minute.when there is tiny holes on surface ,it is almost done.Add fillings and fold into half ,slice and serve!