A Jinan flash-fry showcase of Shandong cuisine: the thick center of pork tripe and trimmed chicken gizzard, both cross-hatch scored, blanched for seconds and then exploded in near-smoking oil. The two ordinarily long-cooked offals emerge crisp-tender and springy in a thin clear glaze.
Oil-Exploded Double-Crisp is a classic Jinan dish of Shandong (Lu) cuisine, said to date to the mid-Qing. To serve the city's officials and gentry, Jinan cooks took two offals that normally demand long boiling — the thick tip of pork tripe and the gizzard — scored them finely and flash-fried them in furious oil so they cooked in seconds yet stayed crisp. First sold as "exploded double-slices" (bao shuang pian), it was renamed "oil-exploded double-crisp" after diners praised its crisp-and-tender bite, and by the late Qing had spread to Beijing, the Northeast and Jiangsu. The principle is older than the name: in the "special livestock" chapter of his Suiyuan Shidan (1792), Yuan Mei records the northern method for tripe — take the thickest part, use only the center, dice it, and stir-fry it in rolling oil, "the crisper the better." Liang Shiqiu's Yashe Tanche later praised the dish as well.
All texture: the tripe and gizzard snap then yield, springy under the teeth with a faint resistance, never rubbery and never raw. The cross-hatch scoring has bloomed open, catching a barely-there glossy glaze; scallion, ginger and garlic ride on top, the flavor clean and savory rather than sauced.
The whole dish lives in a two-second window. Only the thick tripe center and the gizzard's clean muscle are used — even-thickness pieces so they cook at the same rate — and both are cross-hatch scored so heat drives in fast and the cuts curl open. A quick blanch in 100°C water takes them only to about half-done, deliberately leaving headroom for the oil; coated in a little salt and wet starch, they then hit lard heated to about 90% (roughly 270–300°C) and are stirred apart for no more than two seconds before being drained. The fierce heat sets the surface protein and flashes off surface moisture before the collagen-rich muscle can toughen or weep, locking in the springy crispness — a second short and it is underdone, a second long and it is no longer crisp. A pre-mixed clear sauce (stock, Shaoxing wine, salt, starch) goes in last so it clings in one fast toss without stewing the offal.
Variations
The gizzard is often duck rather than chicken; some cooks pair tripe with pork kidney or squid for the second "crisp." Scoring varies by kitchen — cross-hatch is standard, though wheat-ear and chrysanthemum patterns are also used to help the pieces bloom. The classic Jinan version stays a pale clear-glaze (clear-explode); other renditions add scallion-and-garlic notes or a touch more color. Many home cooks flash-fry without deep oil, but true oil-exploding keeps the lard near smoking.
On the Palate
Where Oil-Exploded Double-Crisp sits in the Chinese flavor cloud
Ingredients
Serves 2
How it's made
7 steps · 40 min
- 112 min
Trim the pork tripe to its thick center (the 'tripe heart') only, peeling off the inner and outer membranes; clean the gizzard and pare away all inner and outer sinew.
- 210 min
Cross-hatch score both: fine grid cuts on the tripe, and cuts about 2mm apart on the gizzard, then cut into evenly sized pieces so they cook at the same rate.
- 38 min
Toss the tripe and gizzard separately with a little salt and wet starch. In a small bowl, mix stock, Shaoxing wine, salt and wet starch into a clear sauce; mince scallion, ginger and garlic.
- 42 min
Blanch the tripe and gizzard in 100°C water for just a few seconds, to about half-done, then drain immediately — this leaves heating headroom for the oil.
Watch outBlanch only a few seconds, to about half-done — this leaves heating headroom so the two-second oil pass finishes it crisp, not overcooked.
- 51 min
Heat lard in a wok over fierce heat to about 90% hot (roughly 270–300°C). Add the tripe and gizzard, stir apart fast with chopsticks for no more than two seconds, then pour out and drain the oil.
Watch outThe oil must be fiercely hot and the toss under two seconds — a beat longer and the tripe and gizzard turn tough instead of crisp-tender.
- 61 min
Leave a little oil in the wok, fry the scallion, ginger and garlic until fragrant, then return the double-crisp.
- 71 min
Pour in the clear sauce, toss once or twice to coat, and plate at once.
