Singapore Yong Tau Fu is one of my favorite food. I like it not because it can beat Ampang Yong Tay Fu (Malaysian food still taste better), I like it simply because it is not oily (it depends of what u pick, I always go for non-fried).
Price varies from place to place.
If you go to food courts in malls, it is slightly more expensive. 7 pieces of Yong Tau Fu with rice or beehoon/noodles/kuayteow is around $3.50.
But if you go to food court near HDB then it is $0.30 per piece.
As you can see from the below picture, there are so many choices. Just pick a few pieces that you like, then decide whether you want it with soup or dried. Dried means they will boil the Yong Tau Foo that u have picked, and then give it to u. After that you have to put Sweet sauce and chili sauce (Chee Cheong Fun type).

My all time favorite...
All non-fried...

I like yong tau fu with soup...
And I always opt for spring onion instead of fried onion because I dont like oily food.
