Ingredients

1 1/2 piece 1 large garlic clove, minced

3/4 cup ¾ cup mayonnaise, preferably whole egg

3 pieces 3 large onions, peeled and finely sliced (brown, white or yellow)

3 tablespoons 3 tbsp butter

2 tablespoons 2 tbsp brown sugar

1 tablespoon 1 tbsp balsamic vinegar

1/4 teaspoon ¼ tsp salt & pepper

1.4 pounds 1.2 - 1.4lb grilling beef steak

1 dash Salt and pepper

1 tablespoon 1 tbsp vegetable oil

16 loaves Turkish bread, 4 rolls / buns of choice)

Preparation

Step#1 Garlic Aioli: Mix mayonnaise and garlic together.

Step#2 Set aside for 30 minutes+For the flavor to develop.

Step#3 (do not keep for more than 3 days tops).

Step#4 Caramelized Onion: Melt butter in a skillet over medium low heat.

Step#5 Add onions and stir to coat in butter.

Step#6 Place lid on (or place a baking tray over skillet).

Step#7 Leave for 20 minutes, stirring once or twice.

Step#8 . Remove lid then cook for a further 20 minutes.

Step#9 Stir every now and then, until onion is golden.

Step#10 (increase heat slightly if the color is not changing).

Step#11 Add sugar, vinegar, salt and pepper.

Step#12 Cook for a further 10 minutes until jammy.

Step#13 Remove from heat and keep warm.

Step#14 Beef: Take beef out of fridge 20 minutes before cooking.

Step#15 Season generously with salt and pepper.

Step#16 Heat oil in a skillet over high heat (or heat BBQ).

Step#17 Cook steak to your liking.

Step#18 if using a secondary cut like Bavette, skirt or flat iron, it’s best medium rare.

Step#19 Transfer beef to a plate, cover loosely with foil and rest for 5 - 10 minutes.

Step#20 Then slice thinly against the grain.

Step#21 Assemble sandwich: 1. Cut Turkish bread into 6" lengths and split into half.

Step#22 Toast lightly.

Step#23 Spread the bottom piece generously with garlic aioli.

Step#24 Top with rocket, then tomato slices, beef, caramelized onion.

Step#25 Spread the top piece of bread with mustard then place on top.

Step#26 Enjoy!