Stack the crêpes and use a 3-inch cookie cutter to cut out small crêpes. I made four cuts per stack. You will need 40 small crêpes in total for two roses (20 crêpes per rose).
Place the crêpes clean side down (the side that didn’t touch the pan). Use a piping bag to pipe Nutella on top, then spread it into an even layer with an offset spatula, leaving a small border for a neater finish. Repeat with the remaining crêpes.
Fold each crêpe in half to form a semicircle.
On a flat surface, stack five semicircle crêpes slightly overlapping to form a strip. Spread Nutella evenly over the bottom of the strip, then roll it up from one end to the other to form a rosebud.
Spread Nutella on the bottom edge of the remaining 15 semicircle crêpes (each rose uses 20 semicircles), then gently press them around the outside of the rosebud to form the petals. The first rose is now complete.
Repeat the process to make the second rose.
Place the roses in a serving cup and decorate with a few mint leaves.
Refrigerate the cakes for 15-30 minutes to set.
Enjoy!