Classic Sweet and Sour Pork with Pineapple

Season the pork evenly with salt and black pepper. Toss with cornstarch until lightly coated; this creates a delicate crust and helps thicken the sauce.

Heat the vegetable oil in a large skillet or wok over medium-high heat. Add the pork in a single layer and stir-fry for 5–7 minutes, until browned and fully cooked. Let excess moisture evaporate to encourage caramelization.

Add the garlic and ginger and sauté for about 1 minute, just until fragrant.

Stir in the bell peppers, onion, and pineapple. Cook for 3–4 minutes, keeping the vegetables tender-crisp for texture and freshness.

In a small bowl, whisk together the ketchup, rice vinegar, soy sauce, and sugar until smooth and well combined.

Pour the sauce into the skillet and toss everything together. Bring to a gentle simmer and cook for 2–3 minutes, until the sauce thickens and evenly coats the pork.

Serve immediately over hot steamed rice.