Hummus without Citrus

Ingredients

• 1 (8 3/4 oz) can garbanzo beans
• 1 Tbsp olive oil
• 1 tsp white wine vinegar
• 1 Tbsp peeled and coarsely chopped onion or shallot (optional)
• 1 clove garlic
• pinch cayenne pepper (optional)
• 2 Tbsp tahini
• to taste salt