Ingredients

• 1/2 cup butter softened
• 2/3 cups granulated sugar
• 1 egg
• 1 teaspoon vanilla
• 1 2/3 cup all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon salt
• 1/2 cup finely shredded sweetened coconut

Icing:

• 2 tablespoons butter softened
• 1 cup icing sugar
• 1 tablespoon grated lime rind
• 1 tablespoon lime juice
• 5 drops green food colouring (optional)