10+1, when do I slowplay KK/AA

Party 10+1

I just seem lost when I get AA/KK in later stages of the game. Is there ever a right time to slwoplay AA/KK??

Im thinking you can get more EV out of AA/KK when the blinds are bigger or once your ITM.

EX, 4 players left. blinds at 75/150
(4000)UTG FOLDS
(1000)BUTTON FOLDS
(1500)SB hero with AA
(1500)BB ???

Do i call or minraise? which will get me more money? In what situations should I slowplay and how (mindraise or call)?

Ty for any reply. Brian