What is the best way to bake a cake that is both gluten-free and vegan? Please provide a recipe. Your response should contain at least 2 placeholders represented by square brackets, such as [baking powder]. The response must have 2 sections. Mark the beginning of each section with SECTION 1 and SECTION 2. In your response, the word "flour" should appear at least 3 times. At the end of your response, please explicitly add a postscript starting with P.S.

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