1. Prepare the Vanilla Cream Filling: Begin by adding the soaked and drained raw cashews, coconut cream, maple syrup, melted coconut oil, vanilla extract, lemon juice, and salt to a high-speed blender. Blend until smooth and creamy. Transfer to a bowl and refrigerate for 1-2 hours until thickened.

2. Bake the Chocolate Roll: Preheat your oven to 350°F. Line a 10×15-inch jelly roll pan with parchment paper. In a large bowl, whisk together the white rice flour, brown rice flour, tapioca starch, coconut sugar, cocoa powder, baking soda, baking powder, and xanthan gum. Stir in the almond milk, melted coconut oil, and maple syrup until smooth. Spread the batter into the prepared pan and bake for 10-12 minutes until it springs back when touched. Allow to cool for 5 minutes.

3. Roll the Cake: While warm, place a clean sheet of parchment paper on top and gently roll the cake from the short end to form a log. Let cool completely.

4. Fill and Shape: Unroll the cooled cake and spread the vanilla cream filling evenly over the surface. Roll up tightly again and freeze for 20-30 minutes to firm up.

5. Cut and Coat: Slice the rolled cake into 8-12 pieces. Melt the dark chocolate (and cocoa butter if using) over a double boiler or in short bursts in the microwave. Dip each piece into the melted chocolate, allowing excess to drip off. Place on parchment paper and refrigerate until firm.