Here are some crafty baking substitutes: Cream of tartar + baking soda = baking powder Rolled oats = bread crumbs 1 cup milk + 1 tsp vinegar = buttermilk Cayenne pepper + dried thyme + dried basil + minced garlic = Cajun seasoning Unsweetened chocolate + sugar = semi-sweet chocolate bar Baking cocoa + shortening = chocolate 1 tbsp melted butter + 1 cup whole milk = half and half cream