Creamy Citrus Dressing

• 1/2 lime, juiced
• 1 lemon, juiced
• 1 1/2 teaspoon Dijon mustard
• 1/2 teaspoon garlic, finely chopped
• 1 small shallot, finely chopped
• 1/4 cup olive oil
• 1/4 cup mayo
• Salt pepper to taste