King Arthur Gluten-Free Biscuit & Baking Mix: What’s Actually Inside?

This mix packs 20 grams of whole grains per serving and is boosted with iron, calcium, and B vitamins. It’s free from dairy and eggs, making it a solid vegan choice. Certifications like Non-GMO Project Verified, GFCO Gluten-Free, and Kosher badges suggest it meets high standards—but don’t expect every batch to behave perfectly.

The blend is mainly rice flour, tapioca, and potato starch, with a bit of xanthan gum to keep your baked goods from falling apart. The powder is fine and soft—no gritty flour surprises here.

Hydration & Texture Tips: The Real Deal

This mix plays a bit thirsty. The recipes on the box tend to underhydrate, leading to thick, heavy batter—especially for pancakes and waffles. Adding an extra quarter to a third of a cup of milk or plant-based milk per batch can make a noticeable difference. For waffles, in particular, that little extra liquid helps keep them crisp and prevents them from turning into dense hockey pucks.

Pro tip: sift the dry mix once or twice before adding liquids. Skipping this makes lumps that turn into sticky globs when baked. Also, overmixing dough will toughen biscuits—treat that batter gently.

What Bakes Well and What Doesn’t

Pancakes and biscuits are the real winners here, delivering tender, fluffy results when you get the hydration and handling right. Biscuits come out with a flaky crumb if you don’t overmix, thanks to a healthy dose of baking powder already in the mix. You likely won’t need to add more leavening.

Waffles require the most attention to liquid amounts and testing because the in-box instructions underhydrate by default. When you nail the batter consistency, waffles come out crisp and free of any gritty or unpleasant aftertaste.

Keep in mind, this mix isn’t suited for yeast-raised bread or complex grain-to-loaf baking. It shines as a quick-bread and pancake base, not as a bread stand-in.

Packaging & Pantry Space: Bulk Alert

You get six 24-ounce bags per package, so plan your pantry space accordingly. It’s a nice bulk deal if you bake often, but those six pounds aren’t exactly shelf-light. Also, packaging design varies—some boxes feature biscuit doodles, others are more minimalist. The mix’s in-box instructions aren’t always easy to find, so keep recipe notes handy or be ready to track instructions online.

Cost Considerations

This isn’t the cheapest baking mix when compared to basic rice or oat flours, but you’re paying for convenience, fortification, and gluten-free certification. Buying in bulk softens the blow a bit. Casual bakers might find it pricey, while regular bakers and households with multiple gluten-free eaters may see it as a practical staple.

Who Should Use This Mix?

If you want a straightforward, all-purpose gluten-free baking mix that works well for pancakes, quick breads, cookies, and biscuits, this covers it. It’s ideal for those looking for gluten- and dairy-free options with reliable certifications.

On the other hand, if you need a mix for yeast breads, or you have limited pantry space, or you absolutely hate tweaking recipes, look elsewhere. This one demands some hydration adjustments and patience with storage.

Bottom Line

King Arthur’s Gluten-Free Biscuit & Baking Mix comes close to nailing the texture and taste that gluten-free bakers crave, but it’s no magic bullet. It requires some recipe fiddling—especially with liquid amounts—and careful mixing. The bulk packaging and cost may deter small-time bakers, but if you’re committed to gluten-free baking and want a versatile, vegan-friendly mix that doesn’t taste like cardboard, this is worth a try. Just be ready to tweak and test a bit to get it just right.