The Best Classic Butter Croissants Jett's Kitchen
PROOFING CROISSANTS. Place a fresh sheet of parchment paper on a baking sheet and arrange shaped croissants making sure to keep enough space between them so they will not touch when proofing or during baking. Combine egg and water and whisk until smooth. Lightly brush each croissant with their first thin coating of egg wash using the pastry brush.