Combine the cream cheese, sugar, and onion powder in a bowl, stirring until everything is fully blended.
Lay a wonton wrapper on a flat surface and place a teaspoon of the cream cheese mixture in the center.
Lightly brush the edges of the wrapper with the beaten egg.
Fold two opposite corners of the wonton together, pressing them firmly in the center, then bring the other two corners together and pinch tightly to form a neat package.
Continue this process with the remaining wonton wrappers and cream cheese filling until all are prepared.
In a deep pan, heat about 4 inches of oil to 350°F (175°C).
Fry the wontons in batches of 5-6, turning them occasionally to ensure they cook evenly on all sides.
Fry each batch for approximately 3-5 minutes until golden brown.
Remove the wontons and place them on paper towels to drain any excess oil.
Repeat until all the wontons are fried.
Garnish with chives and serve immediately with your favorite dipping sauce.