What gluten free flour blend should I use?
Use a 1:1 gluten free baking flour that already contains xanthan gum. Brands vary a lot by weight and performance, so if you can, use the same blend you bake with most. If you want a starting point, most “measure for measure” blends land around 120 to 140 g per cup (so 240 to 280 g for 2 cups), but check your bag for the most accurate grams. If your blend does not include xanthan gum, add 1/2 teaspoon to the dry ingredients.
Can I make it dairy free?
Yes. Swap the butter for melted coconut oil or a neutral oil, and use a dairy free yogurt. The loaf will be slightly more cake-like with oil, but still moist and tasty.
Why did my banana bread sink in the middle?
Usually it is one of three things: the loaf was underbaked, the oven ran hot then cooled, or there was too much moisture. Make sure you measure flour with the spoon-and-level method, and bake until the center hits about 200°F to 205°F if you have a thermometer.
Can I reduce the sugar?
You can drop the sugar to 1/2 cup if your bananas are very ripe. The loaf will be less sweet and a bit less tender, but still solid.
Can I add mix-ins?
Absolutely. Keep it to 3/4 cup total so the loaf does not get heavy. Chopped walnuts, pecans, or white chocolate are great with the citrus.
Any allergen notes?
Gluten free flour blends sometimes include extras like milk powder, oat flour, or nut flours depending on the brand. If you are baking for allergies beyond gluten, give the ingredient label a quick scan.