Knead flour, 250 g butter in pieces, sugar and egg until smooth. Cool for 30 minutes
Roll out the dough on a greased, floured tray (approx. 35 x 40 cm). Bake in a hot oven (electric cooker: 175 °C / convection oven: 150 °C / gas: level 2) for 20-25 minutes. Cooling down
Bring 250 g butter, syrup and cream to the boil while stirring. Simmer at medium heat for about 25 minutes while stirring constantly. Spread on the dough base (shortbread). Chill for about 30 minutes.
Chop the chocolate coating, melt in a hot water bath, cool to lukewarm. Spread on the toffee mixture. Cut into strips of about 3.5 cm width, then into 4 cm long rhombuses. Decorate with 1 almond each. Leave to dry