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 is a cake that holds its shape well when sliced, is very moist, and keeps well. It's perfect for quick meals, appetizers, picnics, or lunchboxes. The recipe can be adapted to different types of flour depending on what you have on hand. It uses neither baking powder nor cornstarch, but rather baking soda and alternative starches. The result is a digestible, well-structured, and nutritious cake, without any unnecessary additives. The ingredients are basic. The method follows a clear logic: assemble, mix, bake.