Which two ingredients are needed to make chocolate pancake batter?

The combination of fresh buttermilk batter and cocoa powder is essential for making chocolate pancake batter. Fresh buttermilk contributes moisture and tanginess, enhancing the overall flavor and texture of the pancakes. It also helps activate the leavening agents in the batter, leading to a fluffier end product. Cocoa powder is the key ingredient that provides the chocolate flavor and gives the pancakes their distinctive color.

While the other options may contain ingredients that could potentially be used in pancake recipes, they do not provide the foundational elements required to create a chocolate flavor or the necessary moisture for a pancake batter. For example, chocolate syrup and pancake mix might create a sweet chocolate treat, but they do not incorporate the rich flavor that cocoa powder provides along with the proper base required for pancake batters.