1>. Position rack in lower third of the oven. Preheat to 300 deg.F 2>. Combine coriander, mustard, cumin, fennel, celery, mace, turmeric annd cloves in 11 x 8 x 2 glass baking dish. Stir thouroughly 3>. Bake in preheated oven for 30 minutes, stirring occasionally. Cool completely. 4>. Stir in the red peeper flakes, dried ginger and dried garlic. 5>. Working in small batches, gring mixture finely in a spice mill, coffee grinder, mini food processor, or blender (mixture ground in a blender will not have as fine a texture). Divide evenly among jars. Seal tightly. Keeps fresh for up to 6 months. Makes 5 4-ounce jars.