01 -
Coat an 8x8-inch dish lightly with nonstick spray.
02 -
Break the croissants into smaller chunks. Toss them into the pan, squeezing them until the pan is full and packed tightly.
03 -
Mix eggs, milk, sugar, and vanilla together in a big measuring cup or mixing bowl. Pour this over the croissant chunks, then scatter the chocolate chips on top. Gently press everything down so the croissants soak it up.
04 -
Leave it at room temperature for an hour, or cover it and refrigerate overnight. Push the croissants under the custard occasionally to ensure everything soaks in.
05 -
Set oven to 350°F. If refrigerated, take the pan out and replace the plate with aluminum foil. Bake for 40-45 minutes until it firms up.
06 -
Serve while warm. Add a drizzle of syrup or dust with powdered sugar, if you'd like.