Don't skip squeezing the zucchini dry; it's the secret to a moist but never soggy loaf. For best results, use fresh blueberries, but frozen work too—just don't thaw. Store wrapped at room temperature for up to 4 days, or freeze for up to 3 months. Reheat slices in the toaster for a crackly crust. See the full post for dairy-free and gluten-free variations.