Thursday 12 April 2012

Takeaway lunch

with thanks to oldstretch for the image

I'm on a very strict diet, I won't go into the details here, but suffice to say, eating out is virtually impossible for me... unless it's a cheat day. Two requirements of my diet prevent me eating out: 
- no starchy or processed carbs
- no gluten.


Today I was in a pickle; on the road at various client's sites, didn't pack lunch, it's already 2pm and I'm late for my next client. No fast food will fit the bill, so what to do? On my way to my next client I dropped in to my nearest supermarket and picked up 250g of turkey breast from the deli, a 250g punnet of delicious Perino tomatoes, and 2* Lebanese cucumbers. Total $12.80. No utensils required.


Nutritionally, it can be broken down as approximately:
 Kilojoules: 1600
 Fat: 40g
 Protein: 40g
 Carbohydrates: <20g
 Fibre: 5g
... Plus the various nutrients in the tomatoes and cucumber.


It was quick, relatively cheap and relatively good. That's a trifecta that's often hard to come by. I was able to wrap a couple of tomatoes in the turkey and enjoy those together with a bite of the cucumber. Delicious. Not entirely a perfect meal, but I can make up for it's deficiencies later in the day.


Let me know what you think in the comments. What quick, healthy snacks can you pick up on the run?

Tuesday 10 April 2012

Onions and the reduction method

Image courtesy of SteveR
Sometimes you get a good one... one that doesn't make you cry. But chopping onions can be one of the most debilitating jobs in the kitchen. A single eschalot (or Allium cepa var. aggregatum) can bring even the most experienced chef to a blubbering mess. And I use onions almost everyday in my cooking, so it's great to not be brought to my knees everytime I slice and dice.
There are three key tricks to keeping your eyes dry and clear whilst prepping your alliums:
  1. Use a sharp knife.
  2. Chill the onions before you cut them.
  3. Do not stand directly over your chopping surface.
Chemistry / biology
If you look at an onion very closely (you may remember using a microscope in high school) you'll see that like other plants, an onion is made of cells. When you cut an onion these cells are damaged and through a series of chemical reactions, the creation and release of the offending gas, known as onion Lachrymatory Factor or LF occurs. When the LF reaches your face it irritates the eyes. This irritation causes your crying reaction which is designed to flush the eyes of the irritant. Read more here for a good explanation.

Tools of the trade
Using a properly sharp knife reduces crushing of the cells in the onion, reducing the chemical reactions that occur and releasing less LF. Less LF = less tears. This is a simple one. I’ll do another piece on sharp knives at a later date.
More chemistry
Depending on what you’ve done to your brain since, you may also remember from high school science that chemical reactions slow down in the absence of heat. This is because for a chemical reaction to occur, at least two molecules must collide with a minimum of energy. Heat increases the (kinetic) energy of the molecules, therefore increasing the likelihood of these collisions. The more collisions, the greater the chemical reaction and vice versa. Read more here as to why this is the case.

Absence of heat is the key to this, if you chill your onions it will slow the chemical reactions that occur. Less chemical reactions = less LF. Keep just enough onions (I think three of four) in the fridge for your next meal or two. When you use them, immediately replace them with onions from the cupboard and you’ll have chilled onions ready for your next meal.
Stand back
When you are chopping, it’s very easy to stand directly over your cutting surface. This increases the LF that gets to your eyes. Try moving your upper body away from the chopping surface to reduce the LF. The same equations apply as above.

Check out the Onions Australia website for more great information on this invaluable vegetable.