Bring a saucepan 3/4 of the way full of clean, cold water to a boil. Add a pinch of salt to the water. Add cubed potatoes to the water and boil for 5 minutes. Drain and cool.
For most potato dishes it's important to add the potatoes to cold water and allow the water to come to a boil with the potatoes in the water. The potato starch can react as soon as it comes in contact with hot water, which will promote uneven cooking and mealy potatoes.
To parboil your potatoes to perfection, cut them into large chunks and put them in a pot of boiling water for around ten minutes, depending on the size. Once the outside is soft but the inside still raw and firm, you're ready to roast!
Remove a potato from the boiling water and test your potatoes with a fork or the tip of a sharp knife--if it goes in with only slight resistance, you're done.
Give them a cold water bath: Once your potatoes are chopped, toss them into a large bowl. Then cover the potatoes completely with cold water and let them soak for at least 30 minutes (or up to overnight). This will help to rinse off the excess starch and help the potatoes crisp up beautifully in the oven.
Don't fry fresh-cut potatoes
Soaking peeled, washed, and cut fries in cold water overnight removes excess potato starch, which prevents fries from sticking together and helps achieve maximum crispness.
Or, to put it another way, potatoes added to boiling water cook unevenly. If, on the other hand, you place potatoes in a pot of cold water, the water and potatoes heat up together, and the potatoes cook evenly inside and out.
If you boil potatoes for too long, they'll lose their structure and absorb too much water. That means that they'll become mushy, won't have the correct texture, and won't hold their shape.
Parboiling is different from blanching in that after parboiling, you rinse the food under cold water, to stop it from cooking, then cook it further when other ingredients are ready, or you store it for later use.
Potatoes soak up a lot of flavor, so salting the water prior to cooking is a good idea for the best taste. And you aren't limited to plain salted water for boiling your potatoes, either.
The most important part here is that you use cold water instead of boiled – if you boil the water first, the outside will cook faster than the inside resulting in an uneven texture. Cubed spuds will take around 15 minutes where larger chunks or whole new potatoes will be 20-25 minutes.
Once cooked (whole or cut) potatoes can be stored in water (with or without vinegar) without becoming discolored or mushy. But, water storage isn't necessary. Refrigerate the boiled potatoes in a sealed container and use within a couple of days.
Bring the water to a boil. Reduce heat to medium low. Cover the pot with a lid and let simmer until fork-tender, about 10-15 minutes for small and/or cubed potatoes or 20-25 minutes for large potatoes. Drain and cool.
COOLING AFTER PARBOILING
When the potatoes are roasted from cold they will have set and stopped cooking, and excess moisture from the boiling process will have evaporated. So when cooked in hot fat the outside will have a headstart and become perfectly crisp while maintaining that delicious fluffiness inside.
Boiled New Potatoes
Place the salad potatoes in a pan and boiling water to cover the potatoes. Cover with a lid and simmer gently for approximately 15-20 minutes until just tender. Once cooked drain immediately.
After-cooking darkening is caused by the oxidation of the ferri-chlorogenic acid in the boiled or fried potatoes. The severity of the darkening is dependent on the ratio of chlorogenic acid to citric acid concentrations in the potato tubers. Higher ratio normally results in darker tubers.
The Food and Drug Administration advises you wash potatoes before you eat them. Potatoes grow in the ground, and carry not only dirt but also bacteria to the grocery store and later, your table. Pesticides also remain on potato skin; even organic potatoes carry some degree of contaminants.
To boil something, you cook it in hot, steaming water, often for a long time. Parboiling takes boiling down a notch. When you parboil, you boil just a little while, which is enough for some vegetables but for other food that's just the first step in the cooking process.
Wonder no more! A potato's cell walls contain pectin, and these pectin chains remain stable when they come into contact with acids. This means that potatoes will remain hard if they are in a dish that has a lot of acid (for example, a dish you've added wine to). Salt is needed to dissolve these pectin chains.
Add lemon juice or vinegar
Lowering the pH of the potato helps fight off oxidation. Just like you might use a squirt of lime juice to keep guacamole from browning, a bit of lemon juice or white vinegar in the bowl with the potatoes will ward off gray hues.
Bring the water to a boil, and cook for 10-12 minutes. (Larger pieces will require longer cooking times.) After 10 minutes, check the potatoes for doneness by piercing one piece with a fork. If the fork easily pierces the center of the potato, they are done.
SOAK your potato chunks in cold water.
This removes some of the starch and helps get them super duper crispy.
Toss the potatoes in the fat (you could get the potatoes up to this stage the day before, simply cover them with clingfilm or tin foil and pop in the fridge or in a cool place until needed), then roast for 30 minutes, or until lightly golden and three quarters cooked.
If you're here, you'll probably be glad to know that yes, you can peel and cut potatoes the day before you plan to serve them — and that it's super easy! All you have to do is submerge the bare potato pieces in water and refrigerate (more on that later).