In a medium bowl, combine the oat flour, protein powder, Skyr, maple syrup, and 1 teaspoon of peanut butter until a thick, pliable dough forms.
In a small blender, combine the pitted Medjool date, hot water, the remaining 1 teaspoon of peanut butter, and sea salt, blending until a smooth caramel consistency is reached.
Divide the oat dough into small portions and roll into balls, then use your thumb to create a deep well in the center of each.
Spoon a small amount of the date caramel into each well and gently pinch the dough over the top to seal the filling inside.
Arrange the bites on a parchment-lined tray and place in the freezer for 30 minutes to firm up.
Melt the dark chocolate in a microwave-safe dish, stir in the crushed peanuts, and roll each chilled bite in the mixture to create a thin coating.
Return the bites to the freezer for 1 hour to allow the chocolate shell to set completely before serving.