Note: batter needs to sit for a day in the refrigerator before cooking Place the flour, sugar, and salt in a medium-sized bowl. Separate the eggs. Make a well in the ingredients and place the egg yolks in the well. Mix, adding the water and, gradually, the milk. Beat the egg whites to stiff peaks and gently fold them into the mixture. Add the lemon zest and the nutmeg, stirring to mix them in. Cover the bowl with a damp clean dish towel and place it in the refrigerator for a day.
When ready to prepare the fritters, heat the oil to 375 degrees in a heavy Dutch oven or deep fryer. Peel the pineapple, core and cut into 1-inch pieces. With tongs, dip the pieces into the batter and fry them until they are golden brown on each side. Remove the fritters with a slotted spoon and let them drain on absorbent paper. Place them on a serving platter and sprinkle them with both the confectioners' sugar and cinnamon by placing them into a small sieve and shaking it over the fritters. Serve warm