Steak sandwich with cardamom chutney

Ingredients

• Steak sandwich
• 1 red capsicum
• 1 tablespoon olive oil
• 4 1cm-thick pineapple slices
• 500 gram beef rump steak
• 25 gram butter
• 4 turkish pide rolls, toasted
• 100 gram baby rocket leaves
• Cardamom chutney
• 4 tomatoes, coarsely chopped
• 2 clove garlic, thinly sliced
• 1 small red chilli, seeded, finely chopped
• 1/2 red onion, thinly sliced
• 1 2cm piece ginger, peeled, chopped
• 1/4 cup (55g) firmly packed brown sugar
• 2 tablespoon red wine vinegar
• 1 teaspoon ground cardamom