Pão de Queijo

The recipe is on the Our Best Bites blog, but here are the ingredients as a quick reference.

1 large egg
1/2 cup milk
1/4 cup canola oil
1 cup tapioca flour (sometimes labeled tapioca starch) no substitutions
1/2 tsp kosher salt
1/4 C grated cheddar cheese (preferably medium or sharp)
1/4 C grated Parmesan cheese

http://www.ourbestbites.com/2011/02/quick-brazilian-cheese-rolls-pao-de-queijo-2/