Ria, you have to be adventurous girl.
I went to Leeds market on, how can I describe it, Asian day. It is all plantains, sweet potatoes and mangoes and stuff. I got a whole mix of chillies for pennies.
I went scrumping for crab apples and then followed Pam the Jam.
Take four dumpy red chillies, eight thin green chillies and eight to ten crab apples all roughly chopped and blitz them in a processor. Add 1ltr water, transfer to a pan and simmer for about two hours, or until it all goes to a mush, then drain through muslin until the mush is fairly dry - do not press.
Note: During the simmer you might have to top up the water every now and then to keep it near the original mark, but some reduction towards the end helps.
Pour the drained liquid into a clean pan and add 450g of jam making sugar to every 500ml of juice. To get the right ratio divide the vol of liquid in ml by 1.2. So, 720ml liquid / 1.2 = 600g of sugar. Boil down to jam consistency - it immediately sets on a cold plate - about 30 mins. Jar up and use whenever.
I got 600ml and It is sooo good, but very hot. Maybe 1/2 the chillies would be better for a 1st try.
Experiment: what could you lose; a few free chillies and apples and 1/2 a bag of sugar?