Be age appropriate: Tailor the task to your child's age and skill level. Under-fives can hull strawberries, roll meat balls, add toppings to a homemade pizza. Children who a little older can crack eggs, measure ingredients and stir ingredients in a batter.
Follow the recipe: Once children are able, have them read recipes out loud. It helps them learn to follow cooking instructions. It's also an opportunity to explain measurements and cooking terms.
Make a plan: As young chefs build their skills, involve them in meal planning. If they are ready, let them prepare simple dishes on their own, with supervision.
Teen talk: At this point it's important to expand skills beyond food preparation into grocery purchasing. Get them to help draw up grocery lists.