3 tbs olive oil
500 g onions, thinly sliced
4 garlic cloves, finely chopped
450 g ripe plum tomatoes, skinned, deseeded and chopped
half a tsp sugar
1 liter veg stock
150 ml white wine
sea salt to season
1. Heat the oil in a saucepan, add onions and gently sauté for 10 minutes until golden and very soft. Add to the Crock Pot with all the ingredients. Cook on high for 4 hours.