In a large bowl, whisk together the potato starch, tapioca starch, brown rice flour, xanthan gum, salt, and instant yeast.
Add the warm water, olive oil, and honey to the dry ingredients. Mix with a stand mixer fitted with a paddle attachment, or by hand, until a smooth batter forms.
Cover the bowl and let it rise in a warm place for 60-90 minutes, or until doubled in size.
Preheat oven to 375°F (190°C). Grease a 9x5 inch loaf pan.
Pour the batter into the prepared loaf pan. Bake for 45-50 minutes, or until a toothpick inserted into the center comes out clean.
Let the bread cool in the pan for 10 minutes before transferring it to a wire rack to cool completely before slicing and serving.
Notes
Enjoy this gluten-free potato bread fresh or toasted. Store in an airtight container at room temperature for up to 3 days.