01 - In a small saucepan, add oil, coriander seeds, cumin seeds, black peppercorns, and dried chilies.
02 - Incorporate garlic, ginger, and optional cinnamon, cloves, or citrus zest into the saucepan.
03 - Warm the mixture over low heat, gently simmering for 10 to 15 minutes without allowing the oil to smoke or aromatics to burn, stirring occasionally until fragrant and lightly colored.
04 - Remove from heat, let cool completely, then strain through a fine mesh sieve or cheesecloth into a clean, dry glass jar or bottle, discarding solids.
05 - Seal the container and store in a cool, dark place for up to two weeks.