Pre heat your oven to 190 degrees celcius

Place the margarine into a bowl and beat it until softened. Then add the sugar, flour, salt, eggs, essence and orange juice and rinds, and whisk until the mixture is smooth.

Use a spoon, to divide the mixture between all the paper cases.

Remove the tins from the oven. Leave the cupcakes to cool in the tins for a few minutes. Then transfer them to a wire rack to cool.