- 1/2 cup mayonnaise
- 1/4 cup sour cream
- 2 tablespoons store-bought harissa paste
- 1/2 teaspoon red wine vinegar
- 1/4 teaspoon ground cumin
- Salt and freshly cracked black pepper
Mix the mayonnaise, sour cream, harissa, vinegar and cumin together in a large bowl and stir with a whisk to combine. Taste for seasoning and add salt and pepper as desired. Refrigerate and serve smeared on lamb sandwiches.