I've got slightly addicted to tomato puree on toast with lots of butter. I've no idea if that is wierd any more these days - I just think of it as tomato jam (which admittedly does sound a bit foul).
Before I was diagnosed with Coeliac Disease (I had a stroke which seemed to bring it out; it was probably passed down genetically but was triggered from that event), I used to love dipping my McDonald's fries into my sundae - just the ice cream bit, not the syrup - for a salty and sweet treat - delicious.
Nowadays I love to top my gluten-free cheese scones with loads of butter, strawberry jam and whipped cream - delicious! There's that salty and sweet combination again.