Catalina Salad Dressing:)

I am making Taco salads for dinner tonight, we love Catalina dressing  with a dallop of  sour cream on top!

3 c. catsup
2 c. oil
1 c. sugar
1 1/2 c. red wine vinegar
1 lg. onion, chopped fine
Pinch garlic powder
Salt & pepper to taste

      Mix well and refrigerate.