Po de Queijo (Brazilian Cheese Bread)
You can use milk or even light milk for those who want a lighter version. Tapioca flour can be found in specialty gluten-free shops.
You can substitute 2 cups Parmesan cheese and 1 pinch sea salt for the Pecorino-Romano cheese.
If this recipe is too challenging there is a wonderful company called Yoki(R) that make a pre-packaged version that is fantastic.