Start by slicing each Medjool date lengthwise and carefully removing the pits.
Arrange the date halves cut-side down on a baking sheet lined with parchment paper. Gently press them flat into a single, even layer. A rolling pin over another piece of parchment can help achieve a perfect flat base.
Spoon a generous dollop of your chosen nut butter onto each flattened date, spreading it evenly across the surface.
Lightly sprinkle your chopped roasted peanuts over the nut butter layer, pressing them down gently so they stick. This adds a lovely crunch!
In a microwave-safe bowl, melt the dark chocolate chips and coconut oil (if using) together. Microwave in 30-second bursts, stirring well after each, until perfectly smooth and glossy.
Drizzle the melted chocolate evenly over the date and nut butter layer, spreading it out with a spatula to ensure every piece is beautifully coated.
For a gourmet touch, sprinkle flaky sea salt, extra chopped peanuts, or cacao nibs over the warm chocolate before it sets.
Pop the baking sheet into the refrigerator or freezer for 20-30 minutes, allowing the chocolate to fully set and harden.
Once firm, take the bark out and use a sharp knife to cut it into your desired pieces. Enjoy right away or store for a future healthy treat!