Boil several potatoes, ideally Ukon Gold, but others will do.
Drain in a colander and allow to cool a little.
Heat in a large pan, oil and mustard seeds (1 to 2 tbl.) When seeds pop, add potatoes and mash. Add 1 tbs. turmeric, 1 tbs. curry, salt, pepper, more oil or lemon juice if needed. Cook until browned and seasoned all the way through.