To keep Lumpiang shanghai or turon crispy longer, be sure to use paper towels to soak up any excess oil after they are fried. Also, do not stack them together while they are still hot. Most likely, they will never stay crispy for days, but you can crisp them up before eating them by putting them in a toaster oven for a few minutes.
Don't cover the shanghai after you cook it. Keep the tray open or poke holes thru the foil if you have to bring it somewhere.
I think adding rice flour more that wheat flour will make it crispy.
Probably salt.
Yes
Its like making sushi with spicy sauce and fried oil in it
no one knows
you just skulpt it
One way that I've been told is that you need to soak the veg in brine overnight. Apparently, the salt will draw out the moisture from the veg and this will make the veg crispy.
about 20 minutes
add more breading
if you want to make the crust chewy try melting the butter in it a little for crispy you can pre bake the crust for a few minutes but not too long or else it will crumble
As soon as you make it , so it's still crispy and tasty.
Are you talking about biscotti? It's made so crispy by being baked twice (Biscotti is Italian for 'Twice baked').