Banh Duc Ngot La Dua (Pandan Rice Cake with Syrup and Coconut Sauce)

Banh Duc Ngot La Dua (Pandan Rice Cake with Syrup and Coconut Sauce)
Ingredients:
Pandan Rice Cake:
1 1/3 cup Tapioca Starch
1 cup Rice Flour
1 cup chopped Pandan Leaves
Water
1/2 tsp. bottle Pandan Extract
1 1/4 tsp. Oil
1/2 tsp. Salt
1 tsp. Lye Water (Optional)
Syrup:
3 oz. Palm Sugar
1 tsp. Brown Sugar
3/4 cup Water
Coconut Sauce:
1 cup Coconut Milk
1/2 tsp. Vanilla Sugar
2 1/2 Tbsp. Sugar
3/4 tsp. Tapioca Starch
Roasted Sesame Seeds (Optional)
Add 1 cup chopped Pandan Leaves into blender.  Add Water and blend.  You need 3 cups Pandan Extract Juice.
Pour through a strain and strain out the Pandan Extract. Set aside.
In a bowl add 1 1/3 cup Tapioca Starch.  Add 1 cup Rice Flour. Mix together.  Add 3 cups Pandan Extract Juice.
Mix well.  Add 1/2 tsp. Pandan Extract.  Add 1 tsp. Lye Water. Add 1/2 tsp. Salt. Add 1 1/4 tsp. Oil. Mix well.
Cover with plastic wrap and let it sit for 15 minutes.
After 15 minutes, pour the batter into a large sauce pan.  Using medium low heat, mix until the batter turn into a sticky dough. Once it becomes sticky remove from heat. 
Spread some oil on your baking pan.  Scoop the sticky batter into pan and try to flatten it out.  Cover with plastic wrap and put into steamer. Let it steam for about 15 minutes or until cooked.
After 15 minutes remove from steamer and let it cook completely. 
In a sauce pan add 3/4 cup Water.  Add about 3 oz. Palm Sugar.  Bring to a boil wait for the Palm Sugar to dissolved.
Add 1 tsp. Brown Sugar.  Mix well, remove from heat and set aside.
Now make the Coconut Sauce. In a small sauce pan add 1 cup Coconut Milk.  Using medium low heat, add 2 1/2 Tbsp. Sugar. Mix.  Add 1/2 tsp. Vanilla Sugar.
Add 3/4 tsp. Tapioca Starch. Mix well and remove from heat then set aside.
Cut the cake into pieces, you can cut it into diamond shape  Place on a plate.  Pour some Coconut Sauce over the cake.  Then pour some of the Syrup.
Sprinkle some Roasted Sesame Seeds and enjoy.