Ingredients

• 1/2 pound crumbled blue cheese
• 1/4 cup sour cream
• 1/3 cup buttermilk
• 1/2 cup mayonnaise
• 1/4 cup red wine vinegar
• 1 tablespoon extra-virgin olive oil
• 1 1/2 tablespoons white sugar
• 1 clove garlic, minced
• ground black pepper to taste
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• 1 head iceberg lettuce, cut into 8 wedges
• 2 roma tomatoes, diced
• 1 small red onion, thinly sliced
• 1/2 pound crumbled blue cheese