Read the Grind Before You Cook Cornmeal

Two bags of cornmeal can stand next to each other in the same cupboard and behave as differently as rice and flour. A coarse grain stays visible when it swells in a saucepan. A fine meal disperses through a batter and makes a thin, grainy coating on the bottom of a biscuit. Color helps you picture the finished dish, but the grind determines how the meal takes up water and how much texture remains after cooking. A person who keeps a single bag can get considerable use out of it by looking at the meal before choosing what to make.

Tilt the bag if it has a window. Coarser pieces resemble irregular crystals and fall against the surface individually. Fine particles shift in a more uniform wave. The words on the label can be helpful, especially the preparation instructions. A bag sold for polenta might be coarse or might be a quicker cooking product. Corn flour is finer than what is generally sold as cornmeal. Masa harina has been made from corn processed differently and brings a different behavior and flavor. In places where cornflour means starch, it is another ingredient altogether. Buy for the actual description and method on the bag when a recipe depends on a particular result.

A coarse grind earns its time over a pot

Start with a small batch if you are opening the bag for the first time. Check the label for the amount of water and meal, then bring the water to a simmer in a saucepan with room above it. Add a little salt. Let the meal run in as a narrow stream while you whisk. A fistful dumped into a small surface of water is likely to produce soft lumps with stubborn centers. Once all the meal has entered the pot, reduce the heat and stir across the base. Thick cornmeal can sputter. Keep the simmer gentle and use a long spoon so your hand remains above the edge of the pot.

As the grain hydrates, the surface changes from an uneven suspension to a continuous mixture. It will still look slightly granular if the grind is coarse. Taste a dab after it cools enough to handle. At first the center of the particle can be hard even though the water looks thick. Continue until the grain feels tender, adding a little hot water if the mixture tightens before it is cooked. The label can give you a starting time. How the grain actually feels is more useful than the timer when a wide pan or a powerful burner has evaporated water faster than expected.

A soft polenta should spread under its own weight on a warm plate. Take it off the heat and stir in a small amount of butter or olive oil. A handful of grated cheese adds salt, so season after tasting if you plan to use it. Pour a portion into each bowl and give it something with a distinct texture, such as a spoonful of white beans or some well browned mushrooms. If the topping includes a thin broth, leave the polenta slightly thicker. If everything else on the plate is dry, loosen the finished polenta with a little hot water. That last splash is easier to control than beginning the pot with far more liquid than it needs.

Spread yesterday's polenta into tomorrow's slices

A freshly cooked pot can supply two meals if you move the extra portion before it sets. Spread some of the hot polenta in a lightly oiled shallow dish. Smooth it just enough to reach roughly the same thickness at each end. Cool and refrigerate the dish promptly. A thin layer cools more readily and gives you broad slices with plenty of surface. Cut the chilled portion into thick rectangles with a sharp knife. Dry the faces if they have collected condensation. A firm slice can take a few minutes of contact in a hot pan without losing the shape the knife gave it.

Use a skillet with a thin layer of oil and wait until the bottom forms a crust before attempting to turn a slice. If the pieces feel fragile, use a wide spatula and keep one side of the pan empty so you can turn them easily. Serve them hot with a little tomato sauce on the side. A whole lake of sauce softens the browned faces, which defeats the reason for taking the extra step. Set a slice across the edge of a small spoonful so the top stays dry. Good leftover polenta can also be crumbled into a skillet with onions and spooned over cooked vegetables. The crisp bits turn out differently from the neat slices and are a reasonable answer when a batch did not set evenly.

Fine meal gives a batter a different crumb

Look at a cornbread recipe before substituting one grind for another. A recipe using fine cornmeal and wheat flour is often designed to rise and slice cleanly. The fine meal is dispersed through the batter and contributes corn flavor and a slight grain. A coarser meal may make each bite more distinct, particularly if the batter is mixed and baked right away. Use the specified grind when you first make a recipe so that you know what texture the baker intended. On another round, replace a small portion of the fine meal with a coarser one and compare the two.

For a useful comparison, put a spoonful of coarse meal into a tablespoon of the recipe's milk or other liquid and let it sit while you prepare the pan. Mix the rest according to the recipe, counting the liquid you used in the soak toward its total. The softened particles can contribute a more deliberate texture than dry particles thrown in at the last moment. Add this mixture before or during the final mixing step rather than stirring a finished batter repeatedly to distribute it. The timing of any leavening ingredients and the mixture's overall thickness still matter. Keep the first experiment small so you can taste the change without rebuilding the entire formula.

If you want a familiar fine cornmeal batter to taste more clearly of corn, adjust what sits beside it. A warm square with a little salted butter has more room to show its own flavor than a square covered with a strongly sweet glaze. For a savory meal, scatter finely sliced scallion greens or diced mild pepper over a small portion of the batter before baking. A handful in a whole pan can work, but begin modestly. Fresh vegetables add water and heavier pieces can collect in the lower part of a delicate crumb. When adding other ingredients, aim for a thin scattering across the top or use a recipe that already accounts for them.

Keep a spoonful for an ordinary crust

Cornmeal can bring a little resistance to the underside of baked dough. Brush a baking tray very lightly with oil and sprinkle a little meal where the dough will sit. Fine or medium particles work for a restrained coating. A coarse meal gives more crunch but can feel gritty when it is piled thickly. Turn the tray so the meal spreads, then shake off excess before placing the dough. Bake according to the recipe and remove loose dry grains around the finished bread before serving. The aim is a scattered texture under the crust, with a few bare patches where the dough touched the tray directly.

You can also use a bit of medium meal in a coating for oven roasted vegetables. Pat slices dry, lightly oil them, and shake with a tablespoon of cornmeal seasoned with pepper and a little salt. Spread them apart on a tray so steam can leave. The loose meal on the tray can darken before the vegetables are tender, which is another reason to keep the layer light. Turn the slices when the lower side is well colored. Use fresh cornmeal for this job. The toasted exterior is where you will taste it most plainly.

Give the open bag a realistic future

Read the package for storage directions. Some cornmeal is sold whole grain and may benefit from cooler storage for quality once open. Keep meal dry and well sealed. Add the name of the grind and the opening date if you transfer it to a jar. It is easy to forget whether a jar of yellow meal was purchased for a quick porridge or a slow one. If you refrigerate or freeze it for storage, keep it tightly closed and measure out what you need with a dry scoop. The label will also tell you if the meal has already had a cooking treatment that changes the directions.

An ordinary bag is most useful when it can do a few specific things. Cook the coarse one slowly enough that the particles become soft. Use a portion warm and set the remainder while it can still be spread. Save the fine bag for a cake or a quick bread whose crumb you already enjoy. When you have a few tablespoons left, put them under a dough or across a tray of vegetables. Small differences in grind matter at that scale because every bite puts the meal where you can actually feel it.