Slow-cooker beef goulash

Name: Slow-cooker beef goulash
Prep time: 25 min
Cook time: 7 h
Total time: 7 h 25 min
Cuisine: European
Ingredients: 3 tbsp olive oil; 2kg braising or stewing steak cut into chunks; 2 large onions finely chopped; 4 mixed peppers cut into 4cm chunks; 3 garlic cloves crushed; 2 tbsp flour; 2 tsp caraway seeds; 2 tsp hot smoked paprika; 1 tbsp sweet smoked paprika plus extra to serve; 4 tbsp tomato purée; 4 large tomatoes cut into small chunks; 400-500ml beef stock; 300ml soured cream; small bunch of parsley chopped