The difference between vibrant Indian food and flat-tasting curry often comes down to one step: toasting your whole spices. **Why it matters** - dry-roasting triggers the Maillard reaction in spices, unlocking aromatic compounds that remain dormant in raw spices. **The technique** - heat a dry pan over medium heat. Add whole spices and shake constantly for 1-2 minutes until fragrant and slightly darkened. **Watch carefully** - spices go from perfectly toasted to burnt in seconds. Remove from heat immediately when you smell the aromatics release. **Grind fresh** - toast just before grinding for maximum flavor. A dedicated coffee grinder for spices is a worthy investment. **Which spices to toast** - cumin, coriander, fennel, and peppercorns benefit most. Do not toast delicate spices like cardamom seeds or saffron.