What is the difference between a yam and a sweet potato?
What is the difference between a yam and a sweet potato?
Although the terms sweet potato and yam are often used interchangeably, the two vegetables are not technically related. Yams, which are native to Africa and Asia, are related to lillies and grasses. Sweet potatoes, on the other hand, are in the morning glory family.
If you look closely, you can tell them apart. Sweet potatoes are typically more uniformly shaped and have tapered ends. Yams have rough scaly brown or black skin and off-white, purple or red flesh. Sweet potatoes typically have yellow, red, purple or brown skin and yellow, orange or orange-red flesh.
In terns of flavor, yams tend to be sweeter and moister. Sweet potatoes differ in flavor depending on the variety -- paler, thinner-skinned sweet potatoes have lower sugar content and are dry and crumbly in texture, similar to a white baked potato. The more common, darker-skinned sweet potatoes have vivid orange flesh and are sweeter in taste and more moist in their texture -- these are the sweet potatoes often mistakenly called yams.
Despite their differences, commonly available varieties of both sweet potatoes and yams are fairly similar in taste and texture, you can generally use them interchangeably in recipes.
When you want the flavor of ginger to permeate a a sauté , stir-fry, sauce or braise, mince it. For the most ginger flavor, mince it finely and add it toward the end of cooking. Cooking ginger longer mellows its flavor.
We usually start with what we call a "thumb" -- a piece of ginger roughly the size and shape of your thumb. To make the thumb easier to peel, start by cutting off any small protruding parts. You can peel and mince these separately.
We like to peel ginger with a spoon. Because a spoon is dull, it easily takes off the soft skin and leaves most of the aromatic flesh behind.
Slice the peeled thumb lengthwise into planks, thick or thin depending on how fine you want your mince to be. After you slice away one or two planks, roll the thumb over on the flat side for more stability.
Stack the planks and slice them lengthwise into matchsticks.
Now just gather the matchsticks together, rotate them 90 degrees, and slice them crosswise to complete the mince. For a finer mince, just run your knife across the pile a few times, chopping as you go.
Lemon zest adds a bright spark to a dish. There are lots of tools for zesting a lemon -- zester, a knife -- but it's hard to go wrong with a fine grater (such as the popular Microplane version), which makes a beautiful light zest that melds into a dish and gives great flavor.
To zest with the Microplane, just rub the lemon in one direction against the little blades. Turn the lemon as you go so you remove only the yellow part -- the zest. You don't want the white pith just beneath -- it's bitter.
If you use a traditional zester, which makes long, thin strands of zest, or a knife, be sure to finely chop the strands with a knife. The finer shrivels of zest will permeate the dish better than the strands.
To get the most flavor out of lemon zest, add it toward the end of cooking.
Recipe: Agnolotti With Eggplant, Tomatoes And Garlic (Cookthink)
Recipe: Broccoli With Fettuccine, Lemon Zest And Parmesan (Cookthink)
Recipe: Cremini Mushroom Risotto With Lemon Zest (Cookthink)
Reference: What is a Meyer lemon? (Cookthink)
