Set your cold eggs in cold water in a pot and bring to a boil. Lower the heat, and let the eggs simmer for 10 minutes. When done, remove the eggs from the pot and set in a bowl of ice water to cool for 15 minutes.
Heat a skillet over medium-high heat. Add Canadian bacon and cook until crispy, about 3–4 minutes. Remove from heat and set aside.
Slice eggs in half lengthwise. Pop the yolks out into a bowl. Set the egg whites on a platter. Mash yolks with a fork until crumbly, then mix in mayonnaise until smooth.
Stir chopped bacon into the yolk mixture. Transfer to a piping bag (or Ziploc with the tip cut off) and pipe into each egg white, slightly overfilling.
Cut English muffin into small croutons. Place one into the center of each egg.
In a microwave-safe bowl, whisk lemon juice, egg yolk, salt, and paprika. Slowly whisk in melted butter until emulsified. Taste and adjust seasoning.
Microwave for 10 seconds. Whisk again (a bit of curdling is fine—it smooths out).
Drizzle sauce over eggs, sprinkle with chives, and serve immediately.