I think condense milk tastes alot better than using plain milk. You can also add a little syrup and then add on your own toppings such as grass jelly, red beans, tapioca, corn and my personal favorite, mochi. Yumm! Hope this helps a little. If anyone has an actual recipe, please share!
the original ones is just regular shaved ice and add toppings like simplygm819 said. For 绵绵冰, people use dry milk powder, water and corn/fruit sugar to make the ice bricks for machine to shave off of in Taiwan. but i just pour water down condense milk into ice cube trays, blend it w/blender, and add toppings