Line a 9×13 inch baking dish with parchment paper. Prepare a 9-inch square baking pan by lining with wax or parchment paper. Consider doubling the recipe--stored in an airtight container in the freezer, an extra batch will last for up to 3 months. Line two trays or large baking sheets with waxed paper. Pour the brown rice cereal into a large bowl. 1. Because these sweet, crunchy treats take just 45 minutes to prepare, they can be made on short notice. In a small saucepan, heat the coconut butter, butter, cocoa powder, almond butter, maple syrup, vanilla, and salt on medium-low heat until smooth and creamy. 2. Preparation.