Preheat the oven to 450F. Arrange the potatoes on a baking sheet with cooking spray or parchment paper. Place in the oven for 10 minutes.
Meanwhile, combine the butter, adobo sauce, and agave. Taste, and add more adobo to your preference.
After 10 minutes, remove the potatoes from the oven and pour half the adobo sauce over them. Stir to coat. Return to the oven for 5-10 more minutes until cooked through.
Serve topped with the blue cheese crumbles and with the remaining adobo sauce on the side for dipping.