While in training to become a cooking teacher a few decades ago, the first thing our group of 12 did each morning before class was prepare a large pot of stock to be used in recipes throughout the day.
Working in four small groups, we had all the ingredients in the stock pot within minutes: chicken, vegetables, herbs, and seasonings, covered with water.
By the time the morning class started, the soup pot was gently bubbling away, perfuming the air. We could have used canned broth or powdered soup base, but the flavor would be compromised.
Chefs learn early in their training the many steps that intensify flavors; some by producing chemical reactions during cooking, some by adding the right flavoring ingredients, and, almost always, using fresh and high-quality ingredients in the correct proportions. Good chefs never take shortcuts and neither should good home cooks. Here are a few basic principles that will add an abundance of flavor to your dishes with just a little bit of extra effort:
The browning reaction
In 1912, French chemist Louis-Camille Maillard conducted a simple experiment in his lab. He heated sugar (in the form of glucose) and glycerin (a sweet syrupy alcohol). Instantly his lab smelled like a kitchen with a faint but distinct aroma of roasting meat – with no meat present. This process became known as the Maillard reaction, or simply the browning reaction, perhaps the most powerful flavor-inducing chemical reaction in your kitchen.
In virtually all recipes that use some kind of meat, poultry, and sometimes fish, the first step is to induce this browning reaction, thus creating flavor. When you place a piece of meat on a hot grill, the browning of the surface changes the taste from bland to a wonderful roasted flavor.
Before browning, pat the meat with a paper towel to make sure it is very dry. Excess moisture will cool the pan, release meat juices, and result in steaming instead of browning the meat. Never overcrowd the pan as this also draws off too much heat. Over high heat with oil, brown the pieces a handful at a time, stirring all the time.
When all the meat or poultry is browned, you are still not done with this step. On the bottom of the pan, there is a layer of stuck browned particles that you don't want to discard with the dishwater. This layer has plentiful flavor that needs to be added to your dish. Deglaze the pan with a small amount of water or wine over low heat. Scrape to speed the process and within a minute the valuable zest is in the liquid. You can use this in a sauce or gravy or simply add it to the liquid if called for in the recipe.
Herbs and spices
The next tool in your bag of flavoring kitchen tricks is the judicious use of herbs and spices. To make dishes really zing using herbs and spices, here are three rules from good chefs:
1. Use them generously.
2. Use them only if reasonably fresh (even dried herbs).
3. Grind them or crush them just before using.
Many recipes are much too shy when using herbs and spices. Usually you can easily double the suggested amount but use your taste to adjust.
Herbs and spices have powerful flavors from a tiny amount of highly aromatic essential oil they contain. But those oils slowly escape over long storage periods, eventually leaving the herbs and spices flavorless. To avoid that, buy them in small quantities that you use up in a year or two. Anything older, do not hesitate to throw away.
According to the McCormick spice company, unground spices keep for about four years, whole dried herbs one to three years, ground herbs one to two years, ground spices and spice mixes one to three years. Assuming, of course, that they are stored in closed containers in a cool place (definitely not near the stove).
Once ground, spices and herbs lose their oils faster and experienced chefs and cooks always buy them whole, then grind or chop fresh herbs, or crush dry ones with their hands just before adding them to the pot.
It's a good idea to label newly bought spices and herbs with a date. It's a waste to throw out a nearly full jar of spices, but it's just as much of a waste to use ancient ones in your dish. In a serious cook's kitchen, an electric or manual spice grinder is an essential tool.
Food enhancers are standard in the processed food industry in tiny amounts owing to their strong flavors. These are organic substances, mostly natural.
The one every cook knows is MSG or monosodium glutamate. It's a totally natural substance, and virtually all foods contain it in varying amounts. Particularly rich in MSG are cheeses, soy sauce, nuts, tomatoes, mushrooms, and virtually all vegetables contain some. Sprinkling a tiny amount recommended by the manufacturer very much sharpens and enhances flavors.
It may be unfashionable to use additional chemicals in our foods, but I have nothing against adding a naturally occurring one like MSG. Make a chicken soup and add a little to one half. Taste the difference between the two soups. Decide for yourself.