Harvey Wallbanger From: Trish123abc ​ 50ml/2fl oz vodka orange juice, to top up 1 tbsp Galliano, 1 orange slice, to garnish 1 cherry, to garnish ​ Pour the vodka into a highball glass and top up with orange juice. Carefully add the Galliano to the top of the drink to create a separate layer. Serve garnished with an orange slice and a cherry.