Blend the almond paste with the sugar (1) and gradually add the eggs and egg yolks.
Add the powdered ingredients (flour, cocoa, baking powder), then the melted butter and the egg whites that have been whisked with the sugar (2).
Pour into the mould and bake at 200 °C (392 °F) for 15 minutes.
Defrost the morello cherries.
Heat the juice with the sugar and the morello cherry purée.
Add the kirsch and macerate with the morello cherries, overnight if possible.
Drain the morello cherries.
Dissolve the gelatine with the water.
Heat the morello cherry juice to 40 °C (104 °F), then add the pectin NH which has been diluted with the sugar (1).
Bring to the boil, add the sugar (2) and afterwards the citric acid solution and dissolved gelatine.
Add the drained morello cherries.
Bring the milk to the boil and pour onto the melted chocolate and glucose.
Add the dissolved gelatine, then the cream.
Blend.
Whisk all the ingredients together.
Cover the Sacher biscuit sponge with a thin layer of dark couverture chocolate to create a protective shell, then turn it over.
Pour the morello cherry compote onto the biscuit sponge before it sets and leave to cool.
Pour the creamy dark chocolate onto the morello cherry compote and freeze.
Cut out 6 cm wide strips to act as inserts.
Pipe 600 g of vanilla cream into the moulds, add the inserts and freeze.
Spray over a chocolate mixture with a slight red tinge.
Add dots of Sublime cream, dark chocolate Christmas trees that have been cut out between two acetate texture sheets, and a few drops of red glaze. Make the ends of the Yule log on a textured sheet using crystallized dark chocolate and cut out 6 cm x 4 cm rectangles.