"Fudge hash" usually refers to a high-quality, malleable, dark-colored hashish—often Afghani—that has a consistency, density, and color similar to fudge. It is also famously associated with the legendary "Hashish Fudge" recipe published by Alice B. Toklas in the 1950s, which was technically a cannabis-infused confection rather than the pressed resin itself. 
Appearance & Texture: This type of hash is renowned for its thick, soft, and pliable texture, which is often likened to fudge or soft marzipan. It is generally black on the outside and dark brown on the inside.
Production: It is made by taking kief (trichomes) and pressing it over a low-heat fire, often incorporating small amounts of hot water, tea, or fat to create a dough-like consistency. It is then kneaded extensively, sometimes by hand or foot, until it achieves its characteristic texture.
Characteristics: Known for being spicy and harsh, high-quality Afghani hash is frequently sealed with a producer's mark