Cooking the espresso martini layer cake

The espresso martini is a classic cocktail so why not turn it into a dessert and show-stopping crowd pleaser.

Ingredients

200g unsalted butter, softened
2 1/2 cups (550g) caster sugar
4 eggs
250g sour cream
150g dark (70%) chocolate, melted, cooled
3 cups (450g) self-raising flour
3/4 cup (75g) cocoa
1 cup (250ml) Kahlua
1/2 cup (125ml) pure (thin) cream
1/4 cup (60ml) vodka
75g chocolate-coated coffee beans, chopped

• Coffee icing

  1kg cream cheese, at room temperature
  175g unsalted butter, softened
  1 1/2 tablespoons instant coffee granules, dissolved in 1 tablespoon warm water
  2 1/2 cups (300g) pure icing sugar