Where can I buy here in Manila some authentic silvanas like those served in Dumaguete? The one served in Sans Rival restaurant. Or if there's none, can you suggest a restaurant serving delicious silvanas?

I've been looking for the same kind here in Manila but I haven't been successful in my search yet. Aside from their Dumaguete branch, they expanded to Cebu. I think we just have to wait for a bit longer but hopefully they'll bring it here too!