Preheat oven to 180°C.
Mix Dr. Oetker Nona Tarts, butter, and egg in the mixing bowl. Fold in sultanas and cornflakes.
Roll the dough into balls (approximately 1.5cm) and place the dough on baking tray. Flatten the dough slightly with a fork.
Bake at 180°C for 15 – 18 minutes.