Heat milk+yeast (not boiling)
Put sugar in warm yeast
Wait for it to bubble, low heat still, just warm not boiling
Add salt to flour
Mix flour and milk by adding milk in little bits and mixing by hand then adding more (about 2-4 tbps at a time) do so until dough is combined but not heavy (if you lift a bit it will pull at least a meter if not more)
Leave dough to rest for at least 30 minutes but preferably an hour
Heat up sunflower oil in pan at medium-medium high for at least 10 minutes
Prep a baking sheet and wire holder for finished lángos
When oil is hot, make a fist sized ball of dough and pull it apart into a disk by hand using gravity and make sure edges are a bit thicker
Fry in oil until bottom edges are golden, then flip
Rest on wire rack for a minute before toppings