Ka'ak is a biscuit and Agwa is a date - these are the imaginatively named 'Biscuits with dates', also known as 'Ma'amoul', although these are slightly smaller and more crunchy than Ma'amoul.
These biscuits are addictively moreish. A decisive crunch, then a melt in the mouth crumble, followed by sweet, chewy dates - heavenly! Traditionally made as flattened balls or rolled into fingers, this year I ran a cookery workshop at the wonderful Wimshul Cooks and we had a go at making them Hamentaschen shaped for Purim (there were no Hamentaschen in Sudan!). Everyone got creative with their shaping and it worked really well, so have fun!