01 - Peel bananas and slice into 1/2-inch (1 cm) thick rounds; set aside.
02 - Cover a baking sheet with parchment paper.
03 - In a heatproof bowl, melt chocolate and coconut oil together over simmering water (double boiler), stirring until smooth, or microwave in 20-second intervals, stirring between each until fully melted.
04 - Dip each banana slice into the melted chocolate using a fork or toothpick, allowing excess chocolate to drip off.
05 - Place coated banana slices on the parchment-lined baking sheet and immediately sprinkle with preferred toppings before the chocolate sets.
06 - Transfer to the refrigerator and chill for at least 20 minutes, or until the chocolate is firm.
07 - Serve cold or store in an airtight container in the refrigerator for up to two days.