Preheat oven to 400F. Line a baking sheet with foil. Toss wings in oil and place on the baking sheet. Sprinkle with salt and pepper. Bake for 30-35 minutes, flipping half way through.
In the meantime, make sauce. In a small pot over medium heat, combine peanut butter, honey/brown sugar, lemon juice, tamari sauce, water, garlic, ginger and cayenne pepper and whisk together. Bring to a boil and then lower to simmer. Cook for 2-3 minutes and stir. Adjust thickness by adding more water if needed. Reduce heat to low until wings are ready.
Once wings have finished cooking through in the oven, turn the oven to broil. Broil the wings for 5-7 minutes, watching carefully, until they are crispy.
Remove from the oven, add wings to a large bowl and pour peanut butter sauce over the wings. Toss until wings are completed covered.
Plate wings, top with chopped peanuts, and serve.