Good Seasons Salad Dressing A Salad Dressing Mix I Want To Sell Includes Another Company's Seasoning Mix. Would This Be Legal?

A salad dressing mix I want to sell includes another company's seasoning mix. Would this be legal? - good seasons salad dressing

The most important ingredient in our mix is 1 / 2 cup of sugar, compared with only one teaspoon of taco seasoning to another company. (The other ingredients are concerned, of course), my sister and I want to start a business mix of packaging and selling at festivals and other things because you've got such good reviews in recent years. In any case, how can I know whether to use everything legally wraps a combination of another company as part of our recipe?