In a food processor, chop nuts (if needed). In a large bowl, mix together nuts, millet, and sea salt.
Bring a large pot over medium heat. Melt coconut oil and mix in peanut butter. Once peanut butter has begun to thin, add in marshmallows and stir until melted.
Remove from heat. Pour nut mixture into the pot and stir until all nuts have been evenly coated.
Pour mixture into a lightly greased glass 13x9 pan. Using a rubber spatula or wax paper, press down on mixture so that it completely covers the bottom of the pan.
Place pan in the refrigerator and allow to cool for 2 hours. Remove from the refrigerator before the mixture hardens completely
Fill pan over onto a cutting board and tap lightly to remove. On the cutting board, slice the block evenly into your desired sized bars.
Once the bars have been cut, melt the dark chocolate and lightly drizzle over the bars. Place bars back in the refrigerator to allow chocolate to harden. Store in the refrigerator for up to 10 days.
Nutrition Facts per serving: 277 calories, 12 g CARBS, 4g FIBER, 20 g FAT, 9 g PRO, 55 mg sodium, 5 g sugar