Blueberries and Lime are a perfect combination for jams so why not add additional tartness using Key Limes.
There is a difference between lime varieties and all have different flavors. The three main limes are listed below. The key lime has a very distinctive flavor leaning on a bit of an orangey-lime flavor. They are really good and tart which make them the perfect choice for the traditional Key Lime pie. When you can find them they are usually smaller than regular limes and pretty expensive.
Much smaller than regular “Persian” limes, the key lime ranges in size from a ping-pong ball to a golf ball. The peel is thin, smooth and greenish-yellow when ripe, as is the flesh inside. Key limes have a higher acidity than regular Persian limes with a very distinctive aroma, which makes them valuable for culinary use.
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