In a medium sized bowl, mix eggs, milk, cinnamon and vanilla. Wisk until well combined.
With large teflon pan over medium heat, add one ounce of clarified butter. Then take one croissant at a time and dredge in egg mixture and grill cutside down first for approximately 3 minutes. Then carefully flip with a spatula. Do not press the croissant. After all croissants are cooked carefully shingle each croissant on a serving plate. Cover with a handful of fresh berries.