I got this recipe from Nigella Lawson's cookbook. It is a great seasoning. Don't let the fear of pickled foods stop you from trying this. The limes are "pickled" in oil infused with tumeric and cumin.
4 1/2 cups pickling salt
2 1/4 cup cheap olive oil (I use canola for everything)
1 tablespoon turmeric
1 teaspoon cumin seeds
3 dried red chili peppers, crushed (I actually omit this since we don't like it spicy)
Cut limes into eighths. Layer them in a 12x8 glass pan. Cover with salt and freeze overnight (or longer which happens). Thaw, put in colander and rinse thoroughly. I save the salt and put it in a bag in the freezer for future needs. Put into jars. Add spices to oil and pour over limes. Cover limes with oil completely or they will mold. Put in dark place for 3 weeks. The longer you save them the more tender they will be.
I check mine regularly to make sure they have enough oil. If the 2 1/4 cups oil is not enough, divide the seasoned oil amongst the jars and top off with unseasoned oil. When I use the limes and oil I always add more oil to make sure it's covering.
Yesterday, I used some of the oil and limes to make lunch.
I poured some of the oil in a deep skillet and heated it while I cut up raw steak into strips. I fried the steak in the oil while I prepped the remaining ingredients. I chopped an onion and about 5 of the lime pickles. I removed the steak and added some nucoa to regrease the pan. I fried the onions and limes until the onions were tender. I then added some leftover rice to the pan (enough to serve 3). I served the rice with a little soy sauce to balance the tartness of the limes and it was so good.