Raspberry Chia Jam

Before embarking on my healthy eating journey, I never thought to make my own homemade jam. It just seemed like too much of a faff and when you have endless options at the supermarket, why bother? But how amazing would it be to be able to make your own healthy homemade jam that's sugar free, mostly fruit and takes only 5 minutes to make? Seems to good to be true, right?