Description Queen Glucose Syrup is ideal for use in confectionery such as hard candies, caramels, jellies and marshmallows. Derived from corn, Queen Glucose Syrup is gluten free and can be used in recipes where corn syrup is called for – simply substitute one for one. Got a jar stashed in the back of your pantry? Put it to good use with our top 10 ways to use up your jar of Queen Glucose Syrup! Ingredients Glucose Syrup (derived from corn), Preservative (220). Allergy Information Gluten Free.