Select your recipe type, choose a texture, and enter how much flour you need. We'll build a custom GF flour blend with exact measurements for every component.
I wasted my first year of gluten-free baking using one all-purpose blend for everything. Sandwich bread that tasted like sawdust. Cookies that crumbled into dust. Pizza dough that had the texture of a hockey puck. The problem wasn't the recipes — it was the flour.
Here's what took me way too long to figure out: different baked goods need different flour ratios. Bread needs more protein and binding power. Cakes need lighter starches. Cookies need a balance of both. A single all-purpose blend is a compromise that's mediocre at everything.
This calculator is built on the ratio system I developed after testing 200+ recipes across six years. Each blend is tuned to the specific demands of the recipe type — the right balance of whole-grain flours (for flavor and structure), starches (for lightness), and binders (for hold). The xanthan gum amount adjusts automatically because bread needs roughly twice as much as cookies.
If you're new to GF baking, start with the "bread" or "cookies" preset — those two recipe types have the biggest difference from all-purpose blends, so you'll see the most improvement. And if you want to go deeper into the science behind each flour, our GF baking course covers it all with hands-on demos.
Every successful GF flour blend has three layers: whole-grain flours that provide flavor and nutrition, starches that add lightness and tenderness, and binders that hold it all together. Getting the ratio right is what separates crumbly disappointments from baked goods that people can't tell are gluten-free.
These do the heavy lifting for flavor and structure. White rice flour is the most versatile — mild taste, fine grind, works in everything. Brown rice flour adds nuttiness and fiber, making it great for heartier breads. Oat flour (certified GF) brings a soft, almost buttery quality that's perfect for cookies and muffins. Sorghum flour has a slightly sweet, wheat-like flavor that makes it ideal for sandwich bread.
Without starch, GF baking would be dense and gummy. Tapioca starch adds chew and elasticity — essential for bread and pizza dough. Potato starch provides a soft, moist crumb that keeps cakes tender. Cornstarch is the lightest option, good for delicate pastries. Most blends use 30-40% starch by volume.
Gluten is nature's binder. Without it, you need a substitute. Xanthan gum is the most common — a tiny amount goes a long way. Psyllium husk powder is a natural alternative that works especially well in bread (it adds more structure than xanthan). Ground flax or chia seeds can work in a pinch for cookies and muffins. Our calculator includes the exact binder amount for each recipe type.
This is the single biggest tip for consistent GF baking. Cup measurements vary wildly depending on how you scoop — you can easily be off by 30%. A kitchen scale costs $15 and eliminates the guesswork. Our calculator shows both cups and grams for this reason.
GF flours absorb liquid more slowly than wheat flour. After mixing, let your batter sit for 10-15 minutes before baking. You'll often see the consistency thicken as the starches hydrate. This is normal and leads to better texture in the final product.
Xanthan gum or psyllium husk isn't optional in GF baking (unless the recipe specifically says so). Without it, cookies crumble, bread won't rise properly, and cakes fall apart when you slice them. The amount matters too — too much makes things gummy, too little and things crumble. Use our xanthan gum calculator if you want to fine-tune the amount.
Mix up a big batch and store it in an airtight container. Room temperature keeps for 2-3 months, refrigerator for 6 months. Whisk before each use since starches settle. Label it with the blend name and date. Having a pre-mixed blend ready removes the biggest barrier to spontaneous baking.
For most baking, no. Single flours like rice flour or almond flour can't replicate the structure that wheat flour provides on their own. A blend of starch + whole-grain flour + protein flour + binder gives you the right combination of stretch, chew, and rise. The exception is recipes specifically designed for a single flour, like almond flour cookies or coconut flour pancakes.
Xanthan gum (or psyllium husk) acts as a binder that mimics what gluten does — it holds the dough together and traps air bubbles so your bread rises and your cookies don't crumble. Without it, most GF baked goods fall apart. The amount varies by recipe type: breads need more (about 1 tsp per cup of flour), while cookies need less (about ½ tsp per cup). Our calculator includes the right amount for each recipe type.
White rice flour has a milder flavor and finer texture — it's better for delicate baked goods like cakes and pastries. Brown rice flour adds a slightly nutty taste and more fiber, which works well in heartier recipes like bread and muffins. Either works in most blends; we default to white rice flour for versatility.
In most cases, yes — they're both starches that add lightness and help with binding. Tapioca starch gives a slightly chewier texture (great for bread), while potato starch gives a softer, more tender crumb (better for cakes). If a recipe calls for one specifically, there's usually a reason, but for general blends they're mostly interchangeable.
Mix your blend in a large bowl, whisk thoroughly to distribute all components evenly, then store in an airtight container. At room temperature it keeps for 2-3 months; in the fridge, 4-6 months; in the freezer, up to a year. Always whisk or shake before using since starches can settle. Label the container with the blend ratios so you can make it again.
Both. Enter your total flour amount in cups, and the calculator gives you each component in both cups and grams. We strongly recommend weighing with a kitchen scale for consistency — cup measurements can vary by 20-30% depending on how you scoop. A $15 digital scale is the single best investment for GF baking.
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