Shrove Tuesday? Ask around in Ireland and many people will be puzzled. But mention "Pancake Tuesday" and a smile lights up most faces. Stacks of pancakes to look forward to. Because it is the day preceding Ash Wednesday, also known as the first day of Lent. And, according to liturgy and tradition, lent is a time when Christians ought to refrain from rich foods, from meat, dairy products and eggs. A time of fasting. For forty days. So, get your pancakes today ... on Pancake Tuesday!