懶人版【蛋撻】5分鐘搞定，滿屋飄香，是我吃過最好的蛋撻 Just 5 minutes, Can't Stop Repeating This Recipe, Easy Egg Tarts

Egg Custard Fill for 15 - 16 tarts:
Large Egg Yolk: 3
Sugar: 25 - 30 g
Corn Starch: 10g
Milk: 100 ml
Whipping Cream: about 250 ml