Combine the butter, salt and water in a pan and over a medium heat bring to the simmer and melt the butter.
Still over the heat add the flour in one go and stir vigorously to avoid lumps and stir until the mixture forms one mass.
Tip in to a stand mixer or large mixing bowl and beat for 2 minutes with a paddle attachment or wooden spoon to speed up the cooling down process.
Meanwhile saute the leeks in a tablespoon of butter until softened. Allow to cool a little.
Add the eggs to the dough and mix well until it forms one mass again.
Add the feta, cooked leeks, garlic and currants to the dough and mix well.
Heat sunflower oil in a deep fat fryer to 180C
Carefully drop small spoonfuls of mixture in to the hot oil and cook for 4-5 minutes until puffed and golden.
Drain on kitchen paper and drizzle with honey while still hot then sprinkle with salt flakes.