Punch up your next shrimp Caesar with this salad-friendly riff on classic cocktail sauce.
In a medium bowl, whisk together ketchup, lemon juice, 2 teaspoons water, mustard, and sugar. Whisking constantly, add oil in a steady stream and whisk until dressing is thickened and smooth. Season with salt and pepper to taste. Refrigerate in an airtight container for up to 5 days.