These used to be my favorite among the tea time snacks as a kid. At home, we used to call it as Muttayappam . Then when I went to hostel for college, we used to get it as tea time snack there. It was well known as love letter among the hostel mates. I am not sure if it is named the same anywhere else. Unlike other tea time snacks like Ullivada, Aval vilayichathu, Bonda etc. this snack was liked by all.
I don't know why is it called love letter. May be because of the sweet filling rolled into those pancakes like a love letter with so much romantic and sweet words that goes into it :). I was surprised to hear it when I first heard it. Anyways, I love the name.
This snack is perfect for kids. When they get back from evening play time and are hungry, serve it and they would be really happy. Atleast that is when my mom used to serve it to us and we would happily eat it. But some people do make it for breakfast as well.