Line an 8x8 pan with parchment paper. Let the parchment paper go over the sides to create a sling. Lightly coat with non-stick spray or coconut oil.
Melt chocolate chips, coconut milk, instant coffee, syrup, and peppermint extract over medium low heat in a small sauce pan. This will take anywhere from 7-12 minutes. Taste to see if more maple syrup is needed for your level of sweetness. Start with 1 and add in additional syrup to taste. Add salt.
Gently pour melted chocolate into your pan. Top with more sea salt. Refrigerate for at least two hours, or until firm. Remove from pan and slice into small squares. Serve cold or at room temperature.