"Create a gourmet burger recipe titled 'Gordon Ramsay’s 10 Millionth Subscriber Burger' using these ingredients: 1 lb 85/15 ground beef (chuck and brisket), 2 oz frozen unsalted butter, 1 Tbsp granulated garlic or garlic powder, 1.5 Tbsp Maldon salt, 1 Tbsp fresh cracked black pepper, 1 Tbsp olive oil, 2 slices Swiss cheese, 2 large portabella mushroom caps with stems and gills removed, 2 large eggs, additional Maldon salt and cracked black pepper to taste, 4 slices thick-cut applewood smoked bacon, 1 cup baby arugula, 1 Roma tomato, 2 brioche hamburger buns, butter for toasting, and a sriracha mayo made from 1/4 cup mayo, 2 Tbsp sriracha sauce, and salt to taste. Use imperial units and format as a complete recipe with ingredients and step-by-step instructions."