1 cup plain yoghurt (full cream is good)
1/2 a cucumber - grated (or a whole mini cucumber)
1/2 t. salt
1/4 t. cumin
1/4 t. coriander
a sprinkle of garlic powder (the one time I don't use fresh!)
1-2 t. lemon juice
Mix it all together - add more of what you like or less of what you don't! I can eat it by the spoonful.