Add olives, garlic, mustard and vinegar to a blender or food processor; pulse until a paste is formed. With the motor running, slowly pour in the oil until combined. Taste and adjust the seasoning with salt and pepper. Note: add the salt a little at a time to help ease the sharpness of the vinegar.
Recipe by Grilling Outdoor Recipes powered by Bull Outdoor Products at http://www.grillingoutdoorrecipes.com/lemon-and-mint-grill-roasted-chicken-halves/