While this recipe has not been tested using gluten-free flour, our readers report that you can use a good gluten-free all-purpose flour blend such as u003cstrongu003eu003ca href=u0022https://amzn.to/3bfsWN9u0022 target=u0022_blanku0022 rel=u0022noreferrer noopeneru0022u003eCup4Cupu003c/au003eu003c/strongu003e to make this zucchini bread gluten-free.