What is GF flour blend?

A pre-mixed gluten-free flour combining 3-5 different flours and starches to approximate the behavior of wheat. Most quality blends follow a similar pattern: rice flour (structural backbone), tapioca or potato starch (binding, lightness), a whole-grain flour like sorghum or millet (flavor depth), and sometimes xanthan gum already mixed in. The leading commercial blends — Bob's Red Mill 1-to-1, King Arthur Measure-for-Measure, and Cup4Cup — all work in our recipes. Two practical notes. First: if the blend already contains xanthan, skip any added xanthan in the recipe; doubling up makes the dough gummy. Second: for extra chew in pizza or flatbreads, swap 10-20% of the blend for glutinous rice flour (mochiko) — despite the name it contains no gluten, just creates a stretchier, slightly sticky crumb. Brand performance varies; if you're new to GF baking, start with the Bob's 1-to-1 blend.