As Strong As Soup

I was stuck in a post office queue recently and I started to daydream about Brittany. (The place, not a person). By the time I got to the counter, I felt I really had to come home and make a quatre quarts. Although versions of this cake can be found in pretty much any French supermarket, Brittany is its spiritual home. The cake is essentially a pound cake, but it’s all about good butter and in Brittany that means very good, salted butter. Incidentally, the name simply refers to the four quarters, the four ingredients of identical weight that make up the cake - eggs, flour, sugar and butter. I add a little vanilla to the cake, which I don’t think is strictly authentic but I like it. Depending on whom you ask, baking powder may not be acceptable either, but I don’t care, I use it anyway. If you fancy a variation, chocolate and apple versions are very popular in Brittany too. This will make enough mixture for a 2 lb (900 g) loaf tin and that’s the more common shape for the cake but y...