Greaseproof paper and parchment paper are not the same -
Baking parchment:
Also referred to as silicone paper, baking parchment is a non-stick paper used to line tins or trays to prevent cake or biscuit mixtures from sticking to the tin. Unlike greaseproof paper, baking parchment does not need to be greased before use.
http://www.waitrose.com/recipes/glossarytermpopup.aspx?gloss...