Nothing compares to the aroma of baked Christmas goodies when you're coming in from the cold winter weather.

Our olfactory senses - sense of smell - contribute up to 80 per cent to our sense of taste, and thus is a very important part of our ability to recognize and enjoy flavour.

The art of holiday baking is a regular activity in many households this time of the year, and some baking tips may be helpful.

Flaky pie dough is a pastry that has a mixture of shortening and/or butter that is "cut in" so that there are small chunks still left in the finished product.

Those little chunks aid in creating steam pockets within the crust, which help with the leavening process, and thus creating the flaky texture.

It is best to keep pie pastry as cold as possible while mixing and rolling, to prevent melting the butter and shortening pieces prematurely.

The best way to do it is to first focus on your ingredients.

Make sure you are using ice water, instead of cold water, and frozen butter grated into the flour mixture is ideal. The frozen butter particles then are already the required size from the grater, and will not suffer from the warm friction of too much mixing or cutting-in.

Secondly, try not to touch the dough with your hands too much, as the warmth from them will melt the butter. It is best to form the dough by folding it over consistently with a chilled metal dough cutter.

Once the dough is formed into a flat disk, wrap and place it in the refrigerator until thoroughly chilled.

Remove, and proceed with rolling, ideally on a chilled marble surface.

Cookies and quick breads are also very popular, and they both rely on baking soda and/or baking powder to rise.

Baking soda and baking powder are considered chemical leaveners.

Baking soda is sodium bicarbonate, and it requires liquid and an acid to make a gaseous reaction. It is usually added to recipes that have a naturally occurring acid in the ingredients, such as buttermilk, yogurt, sour cream, honey, molasses, and/or fruits.

Baking powder, on the other hand, is a complete leavener, as it only requires liquid for it to react in the same manner.

The baking powder reacts on its own because it contains a mixture of baking soda and a balanced amount of acid, along with starch to help prevent it from lumping.

That is why you will see some recipes that call for baking powder and others with baking powder and/or baking soda.

A good comparison of this would be a pancake recipe, compared to a buttermilk pancake recipe.

Whatever desserts you choose to celebrate with, I wish you all the best of health and happiness this holiday season.

Dear Chef Dez,

Could you please tell me how I can make self-rising flour by myself?

Kimie T., Maple Ridge

Dear Kimie,

Yes, by all means. Mix together 1 cup of flour with one and a half teaspoons of baking powder, and half a teaspoon of salt.