This is a DIY version of Bob's Red Mill Gluten-Free 1 to 1 Baking Flour, which does contain xanthan gum. We call this our FODMAP Everyday® All-Purpose Low FODMAP Gluten-Free Flour.
Low FODMAP Serving Size Info: Makes about 4 cups (800 g); serving size 1/2 cup (50g)
Simply whisk the ingredients together very well. Store at cool room temperature in an airtight jar.
Whisk again before measuring to use in recipes. Use within 3 months.