Put flour, crumbled yeast, sugar, 1 egg, lemon peel, milk, raisins, salt and soft fat in a bowl and knead the ingredients into a smooth dough. Cover the dough and let it rise in a warm place for about 30 minutes.
Cut the marzipan into small pieces. Separate the remaining egg. Mix egg white, marzipan, nuts, 1 tablespoon of condensed milk and lemon juice. Knead the yeast dough again well and roll out on a floured work surface to a rectangle of approx. 40x30 cm.
Divide the rectangle lengthwise into 3 strips of equal width. Spread the marzipan mixture over the middle of the strips and roll up the strips. Weave the 3 strands into a plait. Place them as a wreath on a baking tray lined with baking paper.
Cover and leave to rise for a further 20 minutes. Whisk the egg yolk and the remaining condensed milk. Coat the wreath with the mixture and bake in a preheated oven (electric: 175°C/ gas: level 2) for 40-45 minutes, covering the last 15 minutes if necessary so that it does not get too dark.
Warm the jam, pass it through a sieve and coat the hot wreath with it. Let the Easter wreath cool down and serve. Makes about 16 pieces.