1. Place saltines in a large zip-close plastic bag. Seal bag & use the bottom of a cup to crush crackers into a fine powder.
2. Add spices to bag, seal & shake well. Rub closed bag between hands to finely crush spices.
3. In a medium bowl mix yogurt, sour cream & 2 Tbsp spice mix. Mix well.
4. Serve with fresh vegetables. Store left-over spice mix in an airtight container for future use.