Not sure where you would find them in person outside of restaurant supply stores, but if you do a search for 2oz sauce cups, a few places sell them online. (I’m USA based)

Honestly I’m a horrible cook, so I couldn’t tell you! I’m personally a big fan of pancakes with a non-syrup wet/moist topping. These came with a dollop of mascarpone and some lemon curd that just hit the spot!