In a large mixing bowl, combine the ground pork, green onions, soy sauce, sesame oil, cornstarch, salt, pepper, ginger, and garlic. Mix until well combined.

Lay a wonton wrapper on a clean surface. Place about 1 teaspoon of the mixture in the center of the wrapper.

Moisten the edges of the wrapper with water using your finger or a small brush. Fold the wrapper diagonally to form a triangle, pressing the edges firmly to seal. Then, fold the two bottom corners of the triangle together and press to seal. Repeat with the remaining wrappers and filling.

Heat about 2 inches of vegetable oil in a deep skillet or pot over medium heat until it reaches 350°F (175°C).

Fry the wontons in batches, being careful not to overcrowd the pan. Cook for 2-3 minutes per side, or until golden brown and crispy.

Remove the wontons with a slotted spoon and drain on a plate lined with paper towels.

Serve warm with sweet and sour sauce, if desired. Enjoy!