Festive Christmas Ice-Cream Cake with Crumb Topping

Ingredients

• 600 ml milk
• 600 ml double cream
• 8 egg yolks
• 120 gm brown sugar
• ¼ tsp xanthan gum (see note)
• 465 gm store-bought Christmas cake, crumbled
• 50 gm candied citrus peel, finely chopped
• 100 gm each red and green glacé cherries, halved
• Festive crumb
• 500 gm rolled oats
• 150 gm (1 cup) plain flour
• 150 gm (2/3 cup) caster sugar
• 175 gm (2 cups) shredded coconut
• 175 gm (½ cup) golden syrup
• 150 gm unsalted butter, finely chopped
• 1 tsp bicarbonate of soda
• 1 tsp ground cloves
• 1½ tbsp ground lemon myrtle (see note)
• 1 tsp ground ginger
• 1 tbsp sea salt flakes
• Chocolate and whisky sauce
• 220 gm (1 cup) caster sugar
• 200 gm (2 cups) Dutch cocoa, sieved
• 1 tbsp vanilla bean paste
• 50 ml single-malt whisky