Preheat the oven to 325° F.
Line a baking sheet with parchment paper and set aside.
In a medium-sized saucepan, add the brown sugar, miso and water. Bring to a simmer and cook, stirring often, until the sugar has dissolved, about 2 minutes.
Add the pecans to the sugar mixture and continue stirring over the heat for another 2-3 minutes and until the pecans are fully coated.
Pour the nuts out onto the lined baking sheet and bake the nuts for 12 minutes or until fragrant and toasted.
Remove the pecans from the oven and let them cool completely. Break the nuts up with your hands, eat immediately or store in an airtight container for up to one week. Enjoy!