There is a collection of gluten free baking mixes at Giant Eagle. They are Giant Eagle’s Nature’s Basket brand. Each sells for $3.99.
At the Legacy Village Store they sell Yellow Cake Mix, Cheddar and Herb Biscuit Mix, Double Chocolate Brownie, Honey Cornbread and Muffin Mix, Cinnamon Swirl Crumb Cake and Muffin Mix, Chocolate Chip Cookie Mix, Pancake & Baking Mix, and All-Purpose Baking Flour.
They can be found on the Giant Eagle website by searching for “gluten free” and filtering for “Nature’s Basket” brand.