any
A salt of (usually) sodium or (sometimes) potassium, combined with the halogen Chlorine, flavors food. Potassium chloride is used by people who want to cut down on their salt for health reasons, but be careful - too much potassium chloride will stop your heart.
Could be caraway.
Me caramel
Lemons are mostly used as food, especially in drinks, desserts, and as garnishes and flavoring. Lemon oil from the peeling is used in furniture polish as well as for flavoring foods.
Food, scents, medications, tobacco additive, flavoring, coloring.
No, vanilla is not poisonous. It is a common flavoring used in food and beverages.
A substance used to impart a particular flavour to food
Chocolate mint plants can be used for flavoring food, from homemade wine to chicken and fish.
MSG, short for MonoSodium Glutamate, (officially: sodium 2-aminopentanedioate)
Your 'stick' is most likely a cinnamon stick. It is actually a piece of dried bark used in flavoring food.
Cardoman, properly spelled cardomom, is used as a flavoring in both food and drink, as a cooking spice and as a medicine
Hops are used as an ingredient in perfume and occasionally as a tobacco or food flavoring. Their main food use and commercial value is in beer.