This gluten-free marble cake is a delicious and healthy alternative to the classic recipe. It's made with almond flour, coconut flour, baking powder, salt, unsalted butter, granulated sugar, eggs, vanilla extract, milk, and cocoa powder. The cake is moist, fluffy, and has a beautiful swirl pattern. It's perfect for people with gluten intolerance or those who want to eat healthier. You can serve it as a dessert or with a cup of tea or coffee.