Cut the chicken breasts into slightly smaller pieces.
Heat a pan with oil and add a pat of butter when the oil is hot.
Add the meat to the pan and brown it well on all sides.
Season with salt and pepper.
Roll out the puff pastry on a flour-dusted table. The rolled-out dough should be able to wrap all the way around the chicken.
Place the chicken in the center of the puff pastry.
Put dollops of spicy cheese over the chicken.
Seal the puff pastry around the chicken and press the dough well together.
Place the dough on a baking sheet lined with parchment paper.
Bake in the oven for 20-30 minutes at 180-200 degrees Celsius (356-392 degrees Fahrenheit) (convection).
Serve chicken in puff pastry with rice, curry sauce, and a salad (e.g., tomato salad).