Slow cooker fisherman's soup

Whole tomato canned in tomato juice

2 can(s), (2 x 400g can)

Chicken stock cube

2 individual, dissolved in 3 cups (750ml) water

Fennel bulb(s)

1 medium, finely chopped

Brown onion

1 medium, finely chopped

Carrot(s)

1 medium, finely chopped

Garlic

2 clove(s), crushed

Capers, rinsed, drained

3 tsp

Fresh thyme

2 tsp, chopped, plus whole leaves to serve

Dried oregano

1 tsp

Dried chilli flakes

½ tsp

Raw peeled prawns

375 g, (or buy 750g shell-on King prawns, then peel and devein)

Skinless white fish

750 g, firm variety, cut into 2cm cubes

Extra virgin olive oil

1 tbs

Lemon(s)

2 medium, cut into wedges