Using wet hands, scoop a tablespoon of dough into your hand, and press the frozen Nutella piece into the center. Then, scoop another tablespoon of dough on top, and roll into a ball, ensuring that no Nutella is exposed.
Top with extra chocolate chips (or nuts, sprinkles, etc) and place on baking sheet
Bake for 11-13 minutes, until lightly golden brown (bottoms should be golden)
Cool on a wire rack for a few minutes and enjoy with a cold glass of milk, cup of coffee, or on its own!