1/2 cup real mayonnaise – low-fat okay
1/4 cup ketchup
1 Tbls. distilled white vinegar
2 tsp. sweet pickle relish
1 tsp. granulated sugar
1 tsp. chopped pimento – optional
1/2 tsp. onion salt
black pepper – to taste
Stir together all ingredients in a small bowl until smooth.
Cover and refrigerate for 4 hours, stirring occasionally, before serving.