Creating Salt and Pepper Shrimp with Crispy Garlic is a simple process. Just follow these steps:

1. Prepare the Shrimp: Rinse the shrimp under cold water and pat dry with paper towels.
2. Season the Shrimp: In a bowl, combine the shrimp with salt, black pepper, and cornstarch. Toss until well coated.
3. Heat the Oil: In a large skillet or wok, heat the vegetable oil over medium-high heat.
4. Fry the Garlic: Add the sliced garlic to the hot oil and fry until golden brown, about 1-2 minutes. Be careful not to burn it.
5. Remove Garlic: Using a slotted spoon, remove the crispy garlic from the oil and set it aside on a paper towel to drain.
6. Cook the Shrimp: In the same skillet, add the seasoned shrimp. Cook for 3-4 minutes on each side until they turn pink and opaque.
7. Add Green Onions: Stir in the chopped green onions and red pepper flakes (if using) during the last minute of cooking.
8. Combine: Add the crispy garlic back into the skillet and toss everything together to combine well.
9. Serve Immediately: Remove from heat and transfer the shrimp to a serving platter.

These steps will guide you in creating this wonderful dish with ease.