How to make
Dissolve the yeast with 1 teaspoon of sugar and half a cup of cool water. Wait for it to rise. Mix the flour with a cup of cool water, the sugar and salt and add the effervescent yeast.
Add 1 tablespoon of oil and leave it in a warm place to rise. It needs to expand very well in volume and become bubbly. Preheat a well greased pan and pour in 1 large ladle of the dough. It needs to be at least 1/4″ (6 mm) thick. Once it becomes dry and shows little holes, flip the pancake.
Brush the ready pancakes with butter and serve with a sweet or salty garnish.