Potato Pikelets with Mushroom "Caviar"

Pikelets are very small pancakes widely enjoyed throughout the former British Commonwealth as both a savoury and a sweet. These tiny cakes can be made way ahead and just need reheating. While a mushroom mixture is used in this recipe to top the pikelets, slices of gravlax, smoked salmon or trout can easily replace the mushrooms if you prefer. (If making these for a cocktail party, I suggest you double the recipe because the nibble is indeed just one bite.)