Panch Phoron (or Panch Phoran) is a five-spice whole seed blend from Eastern India (Bengal, Odisha, Bihar) and Bangladesh, essential for tempering in dishes like dals, vegetables, and pickles, providing a unique sweet, pungent, and bitter flavor by combining equal parts of fenugreek, nigella (kalonji), cumin, fennel, and mustard/radhuni seeds, always added whole to hot oil or ghee for a fragrant burst.