Demiplane of Cookery

You create a portal that leads to a kitchen equipped with state-of-the-art cooking utensils and machinery. The portal is large enough to allow Medium creatures to pass through unhindered. When opened, the door leads to a demiplane that appears to be a well-equipped kitchen 120 feet in each dimension, made of stone. When the spell ends, the portal disappears, and any creatures or objects inside the demiplane are forcibly pushed out of the demiplane through the portal, but the kitchen utensils stay in the demiplane. There are two unseen servants in the demiplane, ready to help you cook. 

Creatures can spend an hour in the demiplane to create a meal enough for 10 creatures. Creatures who eat meals cooked this way gain the following benefits: 

• They regain 2d10 hit points. 
• They reduce one level of exhaustion, if they have any. 
• The gain 2d4 temporary hit points. 
• They gain advantage on the next ability check they make.