French Dressing

• 1/2 cup mayonnaise or whipped salad dressing (I use salad dressing)
• 1/2 cup ketchup
• 1/4 cup white vinegar
• 1/3 cup white sugar
• 1 small onion ( minced)
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1 cup canola oil
• Put all ingredients in blender and blend until smooth