Susan's Pao de Quiejo

A friend shared this recipe for Pao de Quiejo, aka Brazilian Cheese Bread.  Her notes:

Makes 2 dozen appetizer-sized balls (or 1 dozen balls and 3-4 single-serving pizza crusts)

Preheat oven to 400 DEG;. Boil the following until white foam appears (on stove or in microwave):

½ cup vegetable oil
1/3 cup water
1/3 cup milk

Add this hot mixture to 2 cups tapioca starch. Mix well with wooden spoon
and let rest for about 15 minutes. You will get white ball. Mix in 2 eggs
and about 6 ounces grated hard cheese* (e.g., parmesan). You will get a
gooey, sticky mass.

To form balls, cover hands with grease, use a teaspoon and quickly roll
into ball shape as best you can (they will smooth out during baking).
Better yet, use a miniature ice-cream scoop. Each ball should be about 1-
½ inch in diameter. Bake on lightly greased sheet or on parchment paper or silicone (Matfer) sheet.

Bake for 15-20 minutes, depending on size, until tops begin to brown.

For pizza, put about half the dough aside in a plastic bag in the refrigerator to use later. Take out the chilled dough and roll it into single-serving size pizzas directly on parchment or a silicone sheet. Prick it all over with a fork, to keep it from forming large blisters, and pre-bake it about 10-12 minutes. Take it out, top it and return to oven to finish baking.

*I like to use half grated, half shredded parmesan or other similar hard cheese.