Patti's Black Bean Hummus

1 (16 oz) can black beans, drained
1 tbsp tahini, optional (sesame seed paste)
3 tbsp pure spanish olive oil
1 lime, juiced
2 cloves garlic, crushed in a mortar
salt and freshly ground black pepper to taste
1 tsp ground cumin

In a food processor fitted with a steel blade, combine all the ingredients and process until smooth. Cover and refrigerate until ready to use. Bring to room temperature before serving. It will keep in the refrigerator for one week. Serves/makes 1.5 cups.