Boil the eggs

• Place the eggs in a saucepan and cover with cold water.
• Bring to a boil, then cook for 10 minutes.
• Drain and cool the eggs in cold water.

Peel the eggs

• Gently crush and roll each egg on the counter to crack the shell all over.
• Peel the shells off under running water.

Make the egg salad

• Chop the peeled eggs and place them in a mixing bowl.
• Add the mayonnaise, mustard, celery, chives, salt and pepper.
• Mash and mix with a fork until creamy but still chunky.

Assemble the sandwiches

• Spoon the egg salad onto the bread slices.
• Close the sandwiches and cut them in half.