Enough people have been buying whey protein powder lately that most frugalites are probably aware whey is nutritious-- But did you know you may have been throwing it away? That thin liquid which forms on yogurt is whey. You can drain off the whey from yogurt, add a little bulgur wheat and let the mixture soak in the fridge overnight, then stir the whey-soaked bulgur back into the yogurt the next day. Whey-soaked bulgur has a pleasant mild flavor, slightly nutty, and adds a soft chewy texture. Makes the most of that protein-rich whey while adding a good source of manganese, magnesium, iron, and fiber. And it's frugal as can be: bulgur wheat sells for $0.15/oz in the US. Learned this trick from The Art of Fermentation by Sandor Katz. Pictured is yesterday's process, starting from homemade plain yogurt before draining of the whey and ending with a full bowl as it's served. The breakfast yogurt also has strawberry and banana, a teaspoon of brown sugar, and allspice.…