In a medium bowl, whisk together the sauce ingredients until smooth and set aside.

In a large skillet, cook the ground beef until browned, then add chopped onion and cook until translucent.

In a clean surface, lay an egg roll wrapper, place the filling, and roll tightly, sealing with water.

Heat vegetable oil and fry egg rolls until golden brown and crispy, about 1 minute on each side.

Remove and drain on paper towels before serving with the Big Mac sauce.