Garlic Butter Chicken Egg Drop Sandwich

Ingredients

• 1 Brioche loaf
• ½ cup unsalted butter
• 500 g chicken thigh fillet
• salt
• ground black pepper
• 1 cup cornstarch
• ¼ cup all-purpose flour
• cooking oil
• 1 tbsp unsalted butter
• ½ cup garlic
• 1 tbsp soy sauce
• 4 eggs
• ¼ cup milk
• 2 tbsp butter
• ½ cup mayonnaise
• ¼ cup condensed milk
• 1 tbsp sriracha
• 4 slices square cheese
• 8 leaves lettuce
• 2 tomatoes