Gluten-Free Hamburger Buns

Step 1
Preheat the oven to 200 degrees F (95 degrees C).

Step 2
Dissolve sugar and yeast in warm water in a bowl. Let stand until yeast softens and begins to form a creamy foam, about 5 minutes.

Step 3
Combine rice flour, oat flour, tapioca starch, cornstarch, xanthan gum, and salt in a mixing bowl; mix to combine. Add yeast mixture, eggs, and oil; mix using an electric mixer on high speed for 3 minutes.

Step 4
Distribute batter evenly between between eighteen 5-inch pie tins. Place onto 2 large cookie sheets. Sprinkle buns with sesame seeds.

Step 5
Allow to rise in the preheated warm oven, 30 to 40 minutes.

Step 6
Set the oven temperature to 400 degrees F (200 degrees C) without removing the buns.

Step 7
Bake in the hot oven for 15 minutes. Switch baking sheets on oven racks and continue to bake until golden, 12 to 15 minutes more.