Korean Steak Sandwich with Jalapenos and Garlic Mayo

Name: Korean Steak Sandwich with Jalapenos and Garlic Mayo
Prep time: 1 h 15 min
Cook time: 5 min
Total time: 1 h 20 min
Cuisine: Asian
Ingredients: 2 medium ribeye steaks; 2 tbsp soy sauce; 2 tbsp gochujang paste; 1 thumb-sized piece of ginger (peeled and minced); 2 tbsp light brown sugar; 2 tbsp rice wine; 3 garlic cloves (peeled and minced); ½ tsp black pepper; 1 grated sweet apple (no need to peel); 1 tbsp toasted sesame oil; 1 tbsp vegetable oil; 1/2 red bell pepper (de-seeded and sliced); 1/2 yellow bell pepper (de-seeded and sliced); 4 thick slices of bread from a large loaf (I used tiger bread); 2 tbsp salted butter (melted); 1/4 tsp sesame seeds; 75 g mature cheddar cheese, grated; 1/2 small red onion (peeled and sliced); 2 small jalapenos (sliced); 3 spring onions (scallions, sliced into thin strips); 3 tbsp mayonnaise; 2 tsp sweet chilli sauce