So what exactly is Catalina dressing? For many we do not question because it is a dressing that is so flavorful and delicious. But for those who are a bit curious, Catalina dressing consists of key ingredients: vinegar, ketchup, salt, sugar, and pepper. Even though these are simple ingredients it is often difficult to get Catalina dressing just right. Luckily, you do not have to with these bottled Kraft varieties. Pour on salads, hamburgers, tacos or use as a veggie dip. Actually, the uses of Catalina dressing are numerous and sometimes an acquired taste. But who are we to judge! Go ahead and pour.