Why use glutinous rice flour instead of all-purpose flour?
Glutinous rice flour creates a crispier, more delicate crust and helps bind the potato mixture without toughening it. All-purpose flour will make the bites denser.
What does double-frying do?
The first fry cooks the interior and sets the exterior; the second fry (at slightly higher heat, 30 seconds) shatters the surface for maximum crispness and removes excess oil.
Can I make these ahead?
Yes. Form and refrigerate mashed potato mixture up to 4 hours before frying, or freeze formed bites up to 1 month; fry from frozen, adding 30-45 seconds to first fry.
How do I know when they're done?
First fry: golden brown and floating (3-4 minutes). Second fry: deep golden brown and firm to touch (30-45 seconds).
What oil temperature is best?
First fry: 325–340°F (160–170°C). Second fry: 350–375°F (175–190°C) for faster, crispier results.