That’s because they are :)!
They are called Dalgona Candy or Ppopgi  and the recipe is just sugar and baking soda! You put the sugar in a ladle, hold it over the hob, preferably one with a flame and not electric, take the sugar off when dissolved and add the soda! As you do, tip it onto parchment paper and form a circle before making your shape. Myself and my foster sister wanted to try and cut the shapes out in the 10 minutes and if we didn’t finish or cracked it Yan could shoot us with a nerf gun. 

He refused and said he won’t shoot a pregnant woman 😂😂😂

This is while I’ll be a good mum to a boy! 🤣🤣🤣