Photorealistic Brownie in a Portal Chamber

Photorealistic render of a fudgy chocolate brownie inside a futuristic portal chamber. The brownie rests on a clear glass pedestal on a polished metallic floor. The chamber features curved steel walls, soft ambient lighting, and a large glowing portal ring in the background, with a swirling blue-violet vortex and electric streaks. Cyan light from the portal casts reflections on the brownie’s glossy surface and the chrome surroundings. The brownie has a deeply cracked top, a moist crumb visible at the edges, and a subtle dusting of cocoa powder; a faint sheen of melted chocolate adds realism. Shot as a macro/product photograph with shallow depth of field, using an 85mm lens at f/2.8, cinematic high-contrast lighting. Include light wisps of steam to suggest warmth and freshness. Ultra-detailed textures, micro-cracks, realistic shadows and reflections to enhance depth.