Cover a cutting board with a plastic wrap. Place chicken breasts half on it. Then, cover chicken breast half with a plastic wrap. So, the chicken breast is placed between 2 pieces of plastic wrap. Flatten chicken breast half with a meat tenderizer. Repeat with the remaining chicken breasts halves.
Mix together egg substitute, dry white wine, lemon juice, garlic, and hot pepper sauce in a shallow dish. Set aside.
Add flour, Parmesan cheese, minced parsley, and salt to another dish. Mix to combine.
Dip chicken breast half into the flour mixture. Then, into the egg mixture and again into the flour mixture. Repeat with the other halves.
Heat olive oil in a large skillet. Cook each chicken breast half for 3-5 minutes on each side or until golden. Transfer them to a plate lined with paper towels.
Add butter to the same skillet. Melt. Then, add wine and lemon juice. Bring to a boil. Cook until the lemon sauce reduced by a fourth. Serve chicken breasts halves warm and drizzle with this lemon sauce.