01 - Preheat a griddle to medium heat (350°F).
02 - Place bacon strips on the griddle and cook for 4-5 minutes per side until crispy. Transfer to paper towels to drain excess grease.
03 - While bacon cooks, whisk together 4 large eggs, 2 tablespoons milk, salt, and black pepper in a mixing bowl until well combined.
04 - Melt 2 tablespoons butter on the griddle. Pour in the egg mixture and scramble gently with a spatula until just set but still moist. Divide into 4 equal portions.
05 - Place English muffin halves cut side down on the griddle. Toast for 2-3 minutes until golden brown and lightly crisped.
06 - Spread mayonnaise or softened butter on toasted muffin halves if desired. Layer scrambled eggs, cheese slice, and 2 bacon strips on bottom half. Cover with top muffin half.
07 - For extra melty cheese, return assembled sandwiches to the griddle. Cover loosely with aluminum foil and heat for 1-2 minutes until cheese is melted.