Deviled eggs are already great. Add bacon crumbles and they become the high protein snack that disappears first at every gathering.
Place the eggs in a saucepan and cover with cold water by 1 inch. Bring to a gentle boil over medium-high heat, then lower to a simmer and cook for 10 minutes exactly. Immediately transfer eggs to an ice water bath to stop the cooking.
Meanwhile, cook the bacon in a skillet over medium heat until crisp, about 7-9 minutes, turning as needed for even browning. Drain on paper towels and crumble once cool.
Peel the cooled eggs carefully under running water. Slice eggs in half lengthwise and gently remove yolks into a medium mixing bowl, taking care not to tear the whites.
Mash yolks with a fork, then add mayonnaise, Dijon mustard, vinegar, salt, and black pepper. Mix until smooth. Stir in half of the crumbled bacon for flavor and texture.
Spoon or pipe the yolk filling back into the egg white halves. Garnish tops with remaining bacon and sprinkle lightly with paprika. Serve chilled for best flavor and firm texture.