Everything you need (except a little butter) to make the most delicious jam bars (like a crumble) you've ever had. All you need is a jar of jam and a little butter and you'll have a treat to blow your family's mind. My favorite is blueberry or sour cherry jalapeno for a little spicy with your bars. You will not be disappointed in this treat! It's about 20 minutes from pouring the ingredients in a pan to enjoyment.