  We introduce Proof-of-Steak (PoS) as a fundamental net-zero block generation
technique, often accompanied by Non-Frangipane Tokens. Genesis cut is gradually
heated and minted (using the appropriate sauce), enabling the miners to
redirect the extracted gold and the dissipated heat into the furnace, hence
enabling the first fully-circular economy ever built using blockchain
technology, utilising tamper-evident steak hach\'e. In this paper we present
the basic ingredients for building Proof-of-Steak, assessing its global impact,
and opportunities to save the world and beyond!
