Sausage-Stuffed Pao de Queijo (Brazilian Cheese Bread)

Preheat the oven to 400°F. In a medium skillet, heat the olive oil. Add the sausage, and cook over moderately

In a medium saucepan, combine the water, milk, vegetable oil and salt and bring to a simmer. Remove from the heat.

Place the sour tapioca flour in a large bowl and briskly mix in the hot milk mixture with a wooden spoon until the flour is completely incorporated and a sticky dough forms. When the dough is cool enough to handle, knead it until smooth and just slightly warm.

Add the eggs one at a time, kneading and then mixing with the wooden spoon until incorporated. Stir in the grated cheese and cooled sausage in two additions.

Using an ice cream scoop and greased hands, shape the dough into 2-tablespoon size balls and arrange them on two parchment paper-lined baking sheets. Bake until puffed and golden, about 20 minutes. Let cool on the sheets for a few minutes before serving.