Pancake Rocks franchised restaurants. In British Columbia and Alberta, Canada, the restaurant chain De Dutch serves Dutch and Flemish-style pannenkoeken. Pancake syndrome is an allergic reaction which some people have after eating pancakes in tropical regions where certain mites can contaminate the flour in pancakes. Pancakes are traditionally eaten on Shrove Tuesday, which is known as "Pancake Day" in Canada, the United Kingdom, Ireland, New Zealand, and Australia, and "Pancake Tuesday" in Ireland and Scotland. (Shrove Tuesday is better known in the United States, France, and other countries as Mardi Gras or Fat Tuesday.) Historically, pancakes were made on Shrove Tuesday
Shrove Tuesday tradition was taken to Hawaii, where Shrove Tuesday is known as Malasada Day, which dates back to the days of the sugar plantations of the 1800s, the resident Catholic Portuguese (mostly from Madeira and the Azores) workers used up butter and sugar prior to Lent by making large batches of "malasadas". In Denmark and Norway, the day is known as "Fastelavn" and is marked by eating "fastelavnsboller". Fastelavn is the name for Carnival in Denmark which is either the Sunday or Monday before Ash Wednesday. Fastelavn developed from the Roman Catholic tradition of celebrating in the days before Lent, but