All my savoury stuff tends to fall flat. But I am pretty good at baking. I made a bakewell tart recently and it was killer. Also bread. I make some pretty mean breads. Also, whilst I haven't done it in a while, I used to make cheese, specifically soft rind cheeses like camembert. Not east to prepare, takes about 8 weeks, but very impressive.

One more, homemade pasta. Whilst I don't really think homemade pasta tastes any better than store bought, people do find it impressive. And a pasta roller is pretty cheap.