Roasted red pepper sauce

Name: Roasted red pepper sauce
Cuisine: Mediterranean
Ingredients: 1 jar (16 ounces) roasted red peppers, drained; 1/4 cup extra-virgin olive oil; 1/4 onion, roughly chopped; 2 cloves garlic, minced; 2 tablespoons chopped fresh parsley; 1 tablespoon capers, drained; Juice of 1/2 lemon; 1/2 teaspoon salt; 1/2 teaspoon black pepper