Pavlova cake originates from which two countries who debate over its true origin?

Australia and New Zealand

In the anime Pokémon, who is Ash Ketchum's main companion Pokémon? What competition do winners of soccer’s UEFA Champions League and UEFA Europa League play in annually? What's the maximum number of clubs allowed in a golf bag during official play? In culinary terms, what phenomena causes browning and flavor changes when food is cooked at high temperatures? What is the largest type of shark alive today?