日式菠蘿包 Japanese style Pineapple Bun (Melon bun)

I found a good youtube video showing how to make this bun. Please go to the video of  Japanese Style Pineapple Bun (Melon Bun) for directions!

Ingredients for Melonpan
(5 pieces)

- Bread Dough -
140g Bread Flour (4.94 oz)
25g Sugar (0.882 oz)
1/3 tsp Salt
5g Non-Fat Dry Milk Powder (0.176 oz)
3g Instant Yeast (0.106 oz) - a little less than 1 tsp
1 tbsp Beaten Egg
70ml Warm Water (2.37 fl oz)
15g Butter (0.529 oz)
Bread Flour for dusting

- Cookie Dough -
25g Unsalted Butter (0.882 oz)
35g Sugar (1.23 oz)
25g Beaten Egg (0.882 oz)
80g Cake/Pastry Flour (2.82 oz)
1/4 tsp Baking Powder
Bread Flour for dusting