In a small bowl whisk together chicken broth, soy sauce, garlic sauce, and cornstarch.: The moment you whisk these ingredients they change from separate flavors into a unified sauce, with the cornstarch suspended in the liquid so it thickens evenly later. You'll notice the broth blending into a slightly cloudy glaze, and the aroma of soy rises softly. This step matters because it prevents lumps and ensures a silky finish on each bite. A common mistake is not fully dissolving the cornstarch, which causes grainy pockets when heated, so whisk thoroughly until smooth and let it sit briefly to hydrate.
In a large nonstick skillet, heat Vegetable oil until shimmering. Add ginger and stir fry until softened, about 1 minute.: As the oil shimmers you should see gentle ripples across the surface and a faint heat haze, and when the matchstick ginger hits the pan it will sizzle and release a bright, spicy fragrance. The sound is a lively, quick pop that tells you the aromatics are blooming. This technique infuses the oil so every following ingredient picks up that ginger note. Watch closely because ginger softens fast and can brown, becoming sharp and bitter if left too long, so aim for softened not darkened pieces.
Add red onions and snow peas and stir fry about 2 minutes.: When you add the thinly sliced red onion and the snow peas you want to keep them moving in the pan so they sear lightly and retain bite. You'll hear a sustained sizzling as moisture evaporates and you'll see edges taking on a hint of color, while the peas stay glossy bright green. This quick sear locks in crispness and preserves fresh flavors, which is essential for contrast with the softer shrimp . A frequent slip is overcrowding the pan which causes steaming and soggy vegetables, so give the pan room and stir constantly.
Add shrimp and stir-fry 1 minute.: The shrimp should hit the pan with a lively sizzle and begin to curl and turn opaque almost immediately. Within this short window you will see their flesh change from translucent to creamy white with pink edges, and the surface gains a faint sear. This speed seals juices and keeps the meat tender, which is why timing is crucial. If you let the shrimp sit too long they toughen, becoming rubbery, so move them quickly and keep the heat high but controlled.
Add green onions and stir-fry 30 seconds.: The aromatic snap of the green onions hitting the hot pan gives a brief hiss and a bright onion scent that lifts the whole skillet. Because they are thin and delicate, they need only a few moments to warm and wilt slightly while retaining color. This late addition preserves their freshness and adds a final aromatic note. Overcooking them will make them limp and mute their sharpness, so add them at the end.
Re-whisk the sauce and add to skillet. Cook 1-2 minutes, until sauce is thickened. Serve with rice.: When you re whisk the prepared sauce you reintegrate any settled cornstarch, creating a smooth, glossy slurry that will cling to every piece in the pan. As it hits the hot skillet you will hear a soft bubbling and see the liquid reduce and thicken into a sheen that coats the shrimp and snow peas . The aroma becomes deeper, and the pan juices glisten. This finishing step binds flavors and creates the pleasing mouthfeel of a proper stir fry. A typical error is adding the sauce too early, which prevents adequate thickening and leaves the dish watery, so wait until the pan is hot and the ingredients are nearly done before adding the sauce.