Method
- Stir the condensed milk and melted butter in a medium bowl until mixed well. In a separate large bowl, use a big wooden spoon to mix the crushed biscuits, lemon zest and coconut. Carefully pour in the butter and condensed milk and stir well until everything is mixed together.
- Line a 28 x 18cm tin with baking paper, then use your hands to press the mixture into the tin. Transfer into the refrigerator to chill for 1 hour.
- To make the icing, beat the butter with a hand-held electric mixer or stand mixer. Beat for 1 minute, then gradually add large spoonfuls of icing sugar and continue to beat on low until all the icing sugar has been incorporated.
- Using a spoon, add the passionfruit and mix until combined.
- Spread evenly over the top of chilled slice. Refrigerate for 1 hour before cutting into squares or bars to serve.
More Tips
- Leftover Icing will keep in the fridge for 2 weeks.
- If icing is too stiff to spread, place in a microwave safe bowl and microwave for 3-5 seconds and stir until soft. Mixture becomes firm on standing.