Slow cooker pork goulash

Ingredients

• 1 kg pork (tenderloin or shoulder)
• butter for baking
• 1 bell pepper (any colour you prefer)
• 4 tablespoons all-purpose flour
• 2 red onions
• 1 red chili pepper
• 3 bay leaves
• few sprigs of fresh thyme
• 2 tablespoons tomato paste
• 1 can of tomatoes (400 gram)
• about 6 large pieces of canned grilled peppers
• 3 garlic cloves
• 50 ml balsamic vinegar
• 500 ml water
• 1 tablespoon fennel seeds
• 1 tablespoon cumin seeds
• 2 tablespoons paprika powder
• pepper and salt to taste