Chop the boiled eggs roughly.

Finely chop the anchovy fillets.

Dice the red onion finely.

Chop the fresh dill and chives.

In a bowl, combine the chopped eggs, anchovies, red onion, dill, and chives.

Add the creme fraiche and mayonnaise to the mixture.

Stir to combine everything well.

Season with black pepper to taste.

Butter the slices of rye bread.

Spoon the gubbröra mixture onto each slice of rye bread.

Garnish with additional dill if desired.