French Salad Dressing

This salad dressing was very tasty. This recipe came from either Cook's country or Cook's Illustrated.

1/2 cup ketchup
1/2 cup vegetable oil or canola oil
1/4 cup white wine vinegar or distilled white vinegar
2 tablespoons sugar
1 teaspoon grated onion
1/4 teaspoon Tabasco sauce (or more to taste)
Add all ingredients to lidded container and shake vigorously until combined. (Dressing can be refrigerated in airtight container for 1 week.)