Ready for the filling? Whether you ready or not, here it is 
Cream puff filling
Ingredients:
- 1/3 cup of sugar
- 2 cups of milk
- 2 tablespoons of butter
- 2 teaspoons of vanilla
- 2 tablespoons of cornstarch
- 2 egg yolks
Directions:
Mix sugar, cornstarch and eggs in a small sauce pan. Gradually pour milk into the mixture, but keep stirring.
the start of the great cream puff filling
Cook it in medium heat, keep stiring, work your muscles until it thickens up and boils.
cream puff thickens up
Remove from heat, pour in butter and vanilla, and of course, stir them in there.
and.. you are done.
after cool down with vanilla and butter
When you done, we just need to finish it up with putting the filling inside the pastry
