Preheat oven to 425 degrees. Trim wings of excess skin (if desired) and allow to come to room temperature (This is important, or else the sauce will be more difficult to spread on them). Pat the chicken wings dry.
Melt the butter in a small pot or in the microwave and whisk in the tablespoon of Cajun Spice and lemon juice. Let cool enough to feel lukewarm. Mix it again and toss the chicken wings with half the sauce. Arrange in single layer on a baking sheet lined with parchment or Silpat and bake for 25 minutes.
Take the wings out of the oven and switch oven to broil. Set your oven rack about 6 inches under the broiler and broil 3-4 minutes, watching until nicely browned.
To serve, toss in the remaining sauce (the butter will have set slightly, but will melt nicely onto your hot wings as you toss them). Plate the wings and dust with more Cajun Spice Mix as desired.