Enchilada sauce:
Heat 1 tbsp of oil in a pan, add the 1 onion, and 2 grated garlic cloves. Cook until onions become translucent. Add in 3/4 tinned tomato puree, 1 tbsp tomato puree, salt, black pepper, 1 tsp cumin powder and 1 tsp chili powder. Cook for 5 minutes. Add 1/2 tsp brown sugar, juice from half a small lemon and 200ml veggie stock (made with 1 stock cube). Cook for a further 5 minutes. Allow to cool, then blend until smooth.