I have no idea what Marmite tastes like, but from what I hear, you either love it or you hate it. Whatever the opinion may be, what Marmite is is a supposedly nutritious British foodstuff that is made from the yeast residue from the beer-making process. It is often used as a spread on toast.Well, just in time to prepare for St. Patrick's Day...a little Irish love for Marmite from Guinness Beer (another love it or hate it thing -- personally, i can't stand Guinness)! Marmite will use the yeast residue from making Guinness to make a limited run of about 300,000 jars of Marmite. Apparently, the stuff was available in the UK as of February 19, 2007.














