After nearly five decades as an icon of Subiaco, the Witch's Cauldron served its last meal at the weekend.

Owners Tanis and Geoff Gosling reportedly told staff on Sunday they would be calling it a day on their successful Rokeby Road venture, not due to financial strain, but because they felt it was the right time.

The Witch's Cauldron in Subiaco has closed. Credit:Heather McNeill

The restaurant, famous for its garlic prawns, was established 46 years ago and has since become an institution for many Perth diners.

It's won multiple awards for its garlic prawns and wine lists, and in 2013 was awarded the Gold Plate Award for best breakfast.