Place almonds in food processor workbowl fitted with steel blade or in blender container; cover and process until finely ground. Cook onion and garlic in oil over medium heat, stirring frequently, until onion is tender. Stir in remaining ingredients except almonds. Heat to boiling; reduce heat. Simmer 1 minute stirring constantly; stir in almonds. Serve hot. Makes about 1 3/4 cups of sauce.