I gave it another try this morning and this time I was careful not to over baked the cheese. It turned out perfect.
I baked some big ones and some mini ones. The mini ones I use half the baking time of the big ones.
I don't want to bake so many of the cheese tarts so I kept some dough for egg tarts. I decided to give egg tarts a try. It is my first try on egg tarts.
Surprisingly, the egg tarts turned out really well and tasted yummy too.