Make the Date Caramel: (skip this step if you're using peanut butter instead)Soak the dates in hot tap water for 10 minutes. Combine the 16 dates, 3/4 cup almond milk, 2 tablespoons maple syrup, 1 teaspoon vanilla extract, and 1/4 teaspoon salt in a food processor or high speed blender and blend until smooth. Scrape down the sides of the bowl as needed. This batch makes about 1-1/4 cups of caramel. You only need 1/2 cup for this recipe. You can store the remaining caramel in the fridge for up to several weeks. Peel 2 bananas and slice each in half crosswise, then cut each half in half again lengthwise to create thick banana sticks. Arrange them on a parchment-lined baking sheet or plate that fits in your freezer.
Spread about 1 teaspoon of date caramel or peanut butter on top of each banana piece using a small spoon or knife. Press 2 tablespoons of chopped peanuts gently into the caramel layer so they stick.
In a microwave-safe bowl, combine 1/3 cup chocolate chips and 1 teaspoon coconut oil. Microwave in 30-second intervals, stirring between each interval, until completely smooth and melted.
Drizzle the melted chocolate over each banana piece, making sure to cover the caramel and peanuts. Sprinkle with a few pinches of flaky salt. Freeze for at least 30 minutes until the chocolate is set, or longer until the bananas are frozen through for the full frozen treat experience.