Prep the Shrimp: First, make sure your shrimp are completely dry. Pat them with paper towels.
Make the Seasoning Mix: In a medium bowl, whisk together the cornstarch, salt, white pepper, garlic powder, onion powder, and sugar.
Coat the Shrimp: Add the shrimp to the bowl with the cornstarch mixture and toss to coat them evenly.
Heat the Oil: In a large skillet or wok, heat the vegetable oil over medium-high heat.
Fry the Shrimp: Carefully add the shrimp to the hot oil in a single layer.
Cook Until Crispy: Fry the shrimp for about 2-3 minutes per side, until they are golden brown and crispy, and the shrimp is pink and cooked through.
Drain and Garnish: Remove the shrimp from the pan and place them on a plate lined with paper towels to drain any excess oil.
Serve Immediately: Garnish with sliced green onions, and red chili peppers and jalapeƱos (if using). Serve hot.