100 ml of extra virgin olive oil (or 50 g of butter/margarine);
Half a cube of fresh brewer’s yeast;
Grated lemon zest;
Peanut oil for frying;
Granulated sugar for sprinkling the zeppole.
STEP
First, boil the potatoes in plenty of water for about 45 minutes;
Peel the potatoes while still hot and pass them through a potato ricer;
Place the flour on a pastry board in a fountain shape and place the mashed potatoes in the center;
Add the eggs, the oil (or the butter or the melted margarine), the crumbled yeast, the sugar and the grated lemon zest;
Knead with your hands and slowly incorporate the flour;
The mixture must be smooth, soft and homogeneous;
Form a loaf, cover with a cloth and let it rise for 2 hours, it should double in volume. After rising, take the dough again, detach pieces of dough a little at a time to form strings and then donuts;
Place the zeppole obtained on a pastry board (which we have dusted with flour);
Cover with a cloth and let rise for two hours in a warm place;
They have to look like this;
Let’s proceed to cooking the zeppole;
In a non-stick pan, pour the seed oil and bring to temperature, when it is very hot, dip the zeppole (two or three at a time) and fry on both sides;
Place the zeppole on absorbent paper and then coat them in granulated sugar;