Instructions

1. In a medium saucepan, pour 1½ cups (375 ml) Champagne. Place over medium-high heat and reduce to 6 tbsp (90 ml). Reduce heat to medium and whisk in whole milk, vanilla bean seeds, granulated sugar and egg yolks until well combined. Add cornstarch and, while whisking continuously, cook until thickened and lightly boiling. Continue to cook custard for 2 minutes, stirring constantly. Remove from heat and whisk in butter. Transfer to a bowl, cover with plastic wrap and refrigerate until chilled. Transfer to a piping bag and refrigerate until ready to use.
2. In a large bowl, whip together whipping cream, icing sugar and skim milk powder with a hand mixer until stiff peaks form. Place in a piping bag and refrigerate until ready to use.
3. To assemble, in a bowl, add remaining 1 cup (250 ml) Champagne. Break up ladyfingers into bite-sized pieces. Working with 1 cookie piece at a time, quickly dunk in Champagne before putting 4 to 5 pieces in bottom of each of 8 stemless Champagne flutes. Top with a layer of about 2 tbsp (30 ml) of custard then about 2 tbsp (30 ml) combined of strawberries and raspberries. Continue building trifles with another layer of dipped cookies, custard and berries. Top each trifle with whipped cream and gold sprinkles, if desired. Refrigerate at least 1 hour and up to 4 hours before serving.