Indian food is my very favorite cuisine. I have been visiting the Indian restaurants in my city since I was about 14 years old. I've been a vegetarian for quite a while, so Indian food is also a great protein source for me, as so much of it is vegetarian. This winter, after being on a waiting wist for a year, I took an Indian cooking workshop. It was GREAT! I learned how to make many of my favorite dishes as well as some new ones. I left with a cute round box of Indian spices as well as a big recipe pamphlet. I've been cooking up a storm since then.
I recently decided to have a big Indian dinner party for some friends and needed to stock up on supplies, so I searched online for "indian grocery store" and found one about 30 minutes away. My eyes were opened! The prices were so low -- bulk rice, lentils, dried beans, nuts (pistachios, cashews, almonds) -- all much less than at grocery stores. And then there were the frozen naans (Indian bread) for $3.00 for four (these cost $3.99 for one at the restaurants), and frozen paneer (Indian cottage cheese at $4.99 for a pound; I know how to make it myself, but it doesn't come out as well).
But the best find were the boxes of "masala" (which, as I learned at the cooking class, just means "sauce"); there are specific masala mixes for specific dishes. These cost $1.49 each, and each box makes about five large batches (each batch has four - six servings). So to make paneer masala, for example (my favorite dish), I would need a fifth of a $1.49 box of masala, a half of a .29 cent can of tomato sauce, an onion (50 cents?) and about half a pound of paneer ($2.50). For a total of $3.50 (plus rice, let's say 50 cents worth -- and call it a grand total of $4.00), I can make around four servings of one of my favorite foods on earth, rather than paying $9.99 (plus tip) at the restaurant for one serving.
The store also had lots of specialty pickles, and chutneys, and mango syrup (for mango lassis -- yummm), not to mention spices used in other cuisines -- cumin, cinnamon, cloves (just to mention the "C" family). And it was so inexpensive!
So frugal friends, I bet the same holds true for other ethnic cuisines. If you're a fan of Mexican, Afghani, Chinese or Vietnamese food, check and see if you can find a grocer that specializes in that food in your area. The savings can be dramatic, and you'll get to meet some people from the country whose food you love!