Place the eggs in a pot and cover them with cold water. Bring the eggs to a boil on the stovetop. Once the water starts to boil, set a timer for 8 minutes. Remove from the heat, drain the water, and run the eggs under cold water for 5 minutes to cool. Then peel and chop.
Prep the ingredients per the instructions above.
Season both sides of the sirloin well with salt and pepper. Set aside.
For the dressing: Whisk together all of the ingredients in a bowl until fully combined. Season with salt and pepper. Set aside.
Preheat a skillet or non-stick pan over medium heat. Once hot, cook the steak on both sides to your desired temperature using a thermometer (see below). (For thicker steak or for a more well-done steak, finish cooking the steak in a 350-degree oven so the outside doesn’t burn before the inside is done to your liking).
Once cooked, set aside to rest for 3-5 minutes. Then slice against the grain or dice into small bite-sized pieces, whichever you prefer.
Toast the bread, then spread it with butter and garlic.
Lay down the lettuce, and top with diced steak, hard-boiled eggs, avocado, cucumber, tomato, onion, and blue cheese.
Mix the sparkling water and lemon.
Dress the salad and serve with bread and sparkling lemon water.
Notes
Steak Internal Temperatures:
Rare: 115 - 120 degrees F
Medium Rare: 125 - 130 degrees F
Medium: 135 - 140 degrees F
Medium Well: 145 - 150 degrees F
Well Done: 160 degrees F