General cooking tips

 
Chosing apricots Try to pick plump and juicy looking apricots with a shiny, smooth, orange color. To check if an apricot is ripe, give it a gentle press with your thumb. If it is ripe, it will give in slightly. 
Helping apricots ripen Place apricots at room temperature in a paper bag with an apple. The ethylene gas that is release by the apple will help the apricots ripen much faster. 
Preserving the color of peeled pears Drop peeled pears in cold, lightly salted water, to preserve their color. 
Preserving the color of peeled apples Drop peeled apples in cold, lightly salted water, to preserve their color. 
Using apples to ripen fruit faster Apples emit ethylene, a gas that makes other fruit to ripen faster. Just add an apple in a bag, together with the fruit you want to ripen.
 
Facts on egg whites Egg whites or albumen, become thinner and more transparent as the egg ages. Use fresh eggs to get taller, more concentrated fried eggs. 
How many tomatoes in an ounce? Many times recipes ask for a certain amount of tomatoes in ounces. To find out how many tomatoes to use in a recipe use the following equivalents:

1 small tomato yields 3 to 4 ounces
1 medium tomato yields 5 to 6 ounces
1 large tomato yields 7 to 10 ounces
 
Easy tomato peeling Put tomatoes in hot water for 30 seconds. Remove from hot water and cool under cold water. Remove stems and peel off the skins. 
Making tomato shells (for stuffed tomatoes) Cut the top off of the tomato (about 1/3 of an inch) and using a spoon scoop out the pulp. 
Keeping pesto from blackening Basil leaves when cut are exposed to oxygen and eventually turn black. Pesto turns black as well. To keep this from happening, cover pesto with a layer of olive oil (about 1/4 of an inch) and refrigerate. Remove from the refrigerator and bring to room temperature before using.