place the cans (unopened) in a big pan and cover with water

boil for 3hours (add more water if needed )

take from heat let them cold down before open

after cold open the cans

split the egg withes from the yolks

beat the egg withes until they get fluffy and double in volume

add the yolks to the condensed milk and mix well

add the withes and mix slowly and carefully ( we don't wanna lose the nice volume )

take to fridge from 4to6hours