JD, very popular here in Spain, have the recipe for you from my THX book. Made with the nice big green tomatoes!
750g green tomatoes
1 teaspoon lemon juice
500g sugar
Wash tomatoes and cut out the top stalky bit. Cut a cross on the bottom and place 30 seconds in boiling water to peel them.
Place in THX and program 4 seconds speed 4.
Add sugar and lemon juice and program 30 mins, Temp Varoma, speed 1. Place basket on top of jug, to allow it to reduce without spitting everywhere!