Combine all ingredients except olive oil in a food processor or blender.

Pulse until pureed. Drizzle in olive oil slowly while pulsing.

Variations; Roasted green bell pepper, shallots, jalapeños, habanero, bacon, oregano, marjoram, parmesean, romano, gruyere, spinach, arugula, watercress, almond, walnuts, honey, lime, lemon, sugar, cayenne, crushed pepper flakes, chives, caramelized onions, bacon fat, peanut oil, coconut oil or milk, toasted coconut,