Catalina Salad Dressing

adapted There's Always Thyme to Cook

1/2 to 3/4 cup sugar
2 teaspoons salt
dash paprika
1/2 teaspoon chili powder
1/2 teaspoon dry mustard
grated onion to taste
1/2 cup vinegar
2/3 cup ketchup
1 cup vegetable oil

Place all ingredients into blender and mix. Store in jar in refrigerator.