Turmeric and curry powder aren't the same — how to use each correctly

Turmeric and curry powder look alike due to their yellow colour but differ significantly in composition, aroma and effect on a dish. Turmeric is a single spice with a mildly earthy flavour, while curry is a blend of multiple spices including turmeric, coriander and cumin. Swapping one for the other can completely change the taste of a meal.