Wash and dry the apples thoroughly. Cut each apple into bite-sized wedges, removing the core and seeds.
In a microwave-safe bowl, heat the caramel sauce in 30-second intervals, stirring in between, until smooth and melted.
Dip each apple wedge into the caramel sauce, allowing any excess to drip off. Place the coated wedges on a parchment-lined baking sheet.
In another microwave-safe bowl, combine the chocolate chips and coconut oil (if using). Heat in 30-second intervals, stirring until the chocolate is completely melted and smooth.
Drizzle the melted chocolate over the caramel-coated apple wedges. You can also dip the wedges into the chocolate if you prefer a thicker coating.
While the chocolate is still warm, sprinkle the chopped nuts and sea salt over the apple bites.
Refrigerate the apple bites for at least 30 minutes to allow the caramel and chocolate to set before serving.