3/4 c. vegetable or salad oil
1/4 c. unsweetened pineapple juice
1 tsp. lemon peel
2 tbsp. lemon juice
1 tsp. dried mint, crumbled
3/4 tsp. salt
1/2 tsp. dry mustard

Combine vegetable oil, pineapple juice, lemon peel, lemon juice, mint, salt, and dry mustard in a large screw-top jar. Cover; shake thoroughly. Refrigerate until ready to use.