Stir together flour, cornmeal, baking powder, and salt. Place in a zip-top plastic freezer bag, and seal. Freeze up to 4 weeks.
TO USE THE FLOUR: Replace self-rising flour in any recipe (such as biscuits) with this cornmeal-enriched homemade version.
PACKAGE IN: Party Treat Boxes ($13.95 for 12; donnahay.com.au)