First cut off the ends of the bun and hollow out the bun so that only the rind and about 1 cm of interior remains.
Cream the butter, strain the anchovies and yolks and finely chop the parsley. Mix everything together with oil, salt and pepper.
Cut the remaining ingredients into small cubes and mix them in.
Spread the finished filling on both sides of the roll.
Press the cut ends of the bread back onto the bun and place the Jägerwecken in the refrigerator for 1 hour.
Slice the finished Jägerwecken and serve.