How to make Bibingkang Malagkit

Ingredients:

4 cups Malagkit na Bigas (iluto na parang ordinaryong kanin.
1 cup Kakang gata (for toppings)
3 cups Ikalawang gata
2 1/2 cups Brown sugar (1/2 cup for the toppings)
1/4 cup Margarine
1/4 cup Corn starch (for toppings)
2 tbsp. Vanilla (1 tbsp. for the toppings)
1 cup Condensed milk
Cheese (optional)