Method

• 1.
  Place custard, espresso, liqueur, brandy and cinnamon in a blender and whiz until smooth.
• 2.
  Pour half into a cocktail shaker and fill with ice, then shake vigorously for 30 seconds before straining into a serving glass. Discard ice from shaker, the repeat process with remaining espresso mixture.
• 3.
  Top each glass with freshly grated nutmeg, then add a cinnamon quill. Serve immediately.