Special equipment: an immersion blender
Combine the peaches, peach nectar, ketchup, molasses, vinegar, mustard, Worcestershire sauce and adobo sauce in a deep saucepan. Bring to a boil over medium heat. Reduce the heat to low and simmer for 20 to 30 minutes, until the sauce has thickened and the flavors have melded. Puree with an immersion blender and let cool.