Butter and line a 20 x 10-cm (8 x 4-inch) loaf pan with parchment paper. In a saucepan, bring the sugar, corn syrup, butter and water to a boil. Simmer for about 15 minutes or until a candy thermometer reads 116 °C (240 °F). Remove from the heat, add the cereal and blend well. Spread into the pan and allow to cool. Cut and wrap the bars individually in plastic wrap.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.