Heat oil in deep fryer to 370.
Blend dry ingredients, except sugar, in a bowl.
Mix eggs, half and half, extracts, butter and sugar until it forms a soft dough.
Turn out onto a floured counter.
Roll out about 1/4 inch thick and cut into rounds.
Make a depression in the rounds with your thumb and put a teaspoon of lemon curd in the depressions of half the rounds.
Wet edges with a little egg and press one unfilled round on the top of each filled round, pinching the edges securely closed, or crimping with a fork.
Fry at 370 until golden turning once. Drain and roll in sugar while still hot.