Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper
Combine milk, oil, and salt in a saucepan and bring to a gentle boil
Remove from heat and immediately add all the tapioca flour
Stir vigorously until well combined, forming a gelatinous paste
Transfer the mixture to a stand mixer with paddle attachment
Beat for 2-3 minutes until slightly cooled
With mixer on low, add eggs one at a time, fully incorporating each
Gradually add the grated cheese, continuing to mix until smooth
Oil your hands lightly and scoop tablespoon-sized portions of dough
Roll each portion into a ball and place on baking sheet, 1.5 inches apart
Bake for 18-22 minutes until puffed and golden brown
Rest for 5 minutes before serving warm