Eitje!

[Lit. Little egg!]
Easy! No sweat!

Alles lijkt weer koek en ei, totdat…

[Lit. Everything seems to be cookie and egg again, until…]
Everything seems to be alright, until..

Dat is het ei van Columbus!

[This is said when a complicated problem has been solved by a very simple solution that nobody thought of before.]
It’s Columbus’ egg!