Assertion: baking powder's ingredient | /r/HasProperty | key
Facets:
Source sentences:
text: Baking powder is a key ingredient in many baked goods.
text: This led me to ponder about certain ingredients that are the key leavening agents used in baked goods; baking soda, baking powder and cream of tartar.
text: If you like to bake you’re probably already aware that baking powder is a key ingredient for many recipes, particularly cakes, breads, cookies and more.