Although Shrove Tuesday is now related to Christianity it was originally a pagan festival. (Like quite a few Christian events). In Eastern Europe the people believed that pancakes symbolised the sun and that eating them helped overcome winter and move into spring. The Slavic god Jarilo was worshipped at this time. He is the god of spring, vegetation and fertility. He sounds similar to the Green Man and the Celtic Sun God Lugh.
Pancake Day is also celebrated in Ireland, Canada and Australia. In France and the USA this day is Mardi Gras (Fat Tuesday).
I made some pancakes with Nutella. I got the idea from a blog but made my own recipe, a basic recipe that my mum uses. I only ended up having one in the end because the Nutella made it quite rich! The pancakes came out better than the ones I made for Imbolg, lol. They are English pancakes which are bigger and thinner than American ones. They're more like the type called crepes in other countries.
Here's a link to the blog with the Nutella recipe. It's in Dutch but you can translate it with Google Translate:
Alternatively you can follow my recipe below. :)