Honey
It's sweet and sticky and can be smothered over anything! Some research has also shown that honey can boost testosterone production because it's rich in B vitamins.
Take him up some honey pancakes for breakfast in bed and then don't move out of there all day!
Oysters
The way that oysters slide down your throat is sensual enough but they are also rich in zinc - another thing that boosts testosterone production. If that wasn't enough already, they'll increase your libido too.
A lot of Chinese recipes use oyster sauce in them such as our Chinese chicken stir-fry - or you could make a night of it at a tasty seafood restaurant, saving afters for the bedroom.