Jelly, jam, preserves, and marmalade. What are the differences? Jelly: Jelly is made with fruit juice and sugar, so if you’re looking for a real fruit spread, this isn’t for you. Because of this, though, it’s the most budget-friendly option. Jam: Jams are a step up from jelly, made with crushed fruit and fruit juice cooked down with sugar. Typically, this is what I will reach for at the store. Preserves: Preserves are for the fruit lovers. They’re mainly real fruit with a little fruit juice and