Try this homemade Park Plaza Squares recipe the whole family will love. Made with butter, eggs, butter and nuts. Easy step-by-step instructions included.
This Park Plaza Squares relies on simple, everyday ingredients such as duncan hines butter cake mix, eggs, butter, melted and box powdered sugar. It comes together quickly and makes 4 servings, at about 781 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026