Roasted cumin powder is highly aromatic and has a more intense flavor than regular (unroasted) cumin. Do not substitute this with regular cumin as you won’t get the right favor. I always keep a jar of roasted cumin powder in my spice cabinet.
To make roasted cumin powder: heat a skillet over low heat and dry roast cumin seeds (I usually do 1 cup) for 5-10 minutes, stirring occasionally until the color of the cumin changes to a dark brown. Turn off the heat and allow the cumin seeds to cool down. Place the cumin into a spice grinder and blend until smooth. Store in an airtight jar and use within 6-8 months for the most flavor.