This savory sweet potato and zucchini cake is a simple, gluten-free recipe. It combines a vegetable base with naturally gluten-free flours. The result holds up well when sliced, is very moist, and stores well. It's perfect for quick meals, appetizers, picnics, or lunchboxes. The recipe adapts to different types of flour depending on what you have on hand. It doesn't use baking powder or cornstarch, but instead uses baking soda and alternative starches. The result is a digestible, structured, and nutritious cake, with no unnecessary additions. The ingredients are basic. The method follows a clear logic: assemble, mix, bake.