In a blender, mix the chipotles with the ketchup, maple syrup, broth and allspice and puree until peaceful.
In a medium saucepan, heat the oil until knowing. Add the onion and garlic and cook over rather excessive heat until golden, 5 minutes. Add the chipotle puree. Season with salt and pepper. Cook over life like heat until thickened, Quarter-hour. Sprint within the lemon juice. Switch to a bowl and let wintry.
Brush on chicken, beef, lamb, pork or ham correct by method of the most titillating instant time of grilling, broiling or roasting. Or, dilute with a itsy-bitsy bit chicken stock and utilize to deglaze pan drippings.