Directions

• Fill a large saucepan with water and bring to a boil. With a ladle, slowly lower the eggs into the water one by one. Reduce the heat to a low boil and cook for 10 minutes. Drain.
• When the eggs are cool enough to handle, remove the shells. Slice each egg in half lengthwise. Remove the yolks and place them in a food processor. Arrange the whites cut-side up on a serving platter.
• To the food processor, add the mayonnaise, lemon zest and juice, mustard, salt, pepper and avocado. Process until well blended and smooth, then transfer to a resealable plastic bag. With scissors, snip off a bottom corner from the bag. Using the bag like a pastry bag, pipe the yolk mixture into the egg whites. Garnish with watercress. Serve immediately or cover loosely and chill until ready to serve.