Smoked Tandoori Cauliflower

Begin by trimming the outer leaves of the large head of cauliflower while keeping the central stem intact for structural integrity. Submerge the head entirely in a large stockpot of boiling water seasoned with 1 tbsp salt for exactly 5 minutes. This parboiling step breaks down the dense cellulose in the core, ensuring the interior is fully cooked by the time the exterior marinade has set. Remove the head carefully and set it upside down on a wire rack to drain and air-dry for 30 minutes; moisture is the enemy of smoke adhesion, so the surface must be dry before coating.

In a bowl, combine 1 cup thick yogurt, 2 tbsp ginger-garlic paste, 2 tbsp Kashmiri chili powder, 1 tbsp garam masala, 1 tsp ground cumin, 1 tsp ground coriander, 1 tsp turmeric, and 1 tsp salt. Whisk in 1 tbsp of toasted besan (chickpea flour), which acts as a protein-based binder, and 2 tbsp mustard oil to create a thick, emulsified paste. The fat in the oil and yogurt is essential here as it captures the fat-soluble phenolic compounds from the apple wood smoke, carrying flavor deep into the nooks of the vegetable.

Using a silicone brush or gloved hands, apply a uniform 1/8-inch thick layer of the spiced yogurt paste over the entire cauliflower head. Ensure you push the marinade deep into the crevices between florets and coat the bottom stem thoroughly. This thick 'tandoori' coating functions like a rub on a brisket, creating a bark-like exterior that protects the moisture of the cauliflower while it undergoes the smoking process.

Place the coated cauliflower in the refrigerator uncovered for 2 to 4 hours. The circulating cold air facilitates the formation of a 'pellicle'—a tacky, jem-like surface on the yogurt coating. This step is critical in smoking because a dry, tacky surface allows smoke particles to stick and react with the proteins in the yogurt and chickpea flour, rather than simply bouncing off a wet surface or steaming the marinade away.

Preheat your smoker to a steady 275°F using apple wood for a mild, fruity smoke profile that won't overwhelm the earthy cauliflower. Ensure the fire is burning clean with 'blue smoke' rather than thick white billows; because vegetables lack the heavy fats of a brisket, they can easily absorb bitter creosote if the fire is oxygen-starved. Place a water pan in the smoker to maintain a humid environment, which aids in smoke ring development on a molecular level even on non-meat items.

Place the cauliflower directly on the grill grates in the center of the cooking chamber. Close the lid and smoke for approximately 75 minutes. During this time, the heat will drive moisture out of the yogurt, concentrating the spices and setting the besan into a crust, while the smoke penetrates the porous structure of the florets. The vegetable is done when a paring knife or probe thermometer slides into the center of the stem with minimal resistance, indicating the pectin in the plant cells has fully softened.

Carefully remove the cauliflower using a wide spatula and transfer it to a warm platter. Allow the vegetable to rest for 10 minutes. This rest period is vital; it allows the internal steam to redistribute and the yogurt crust to firm up slightly. If cut immediately, the steam will rapidly escape, causing the cauliflower to lose its juicy interior and making the florets more likely to crumble during carving.

Finish the head by showering it with freshly chopped cilantro and a bright squeeze of lemon juice to cut through the richness of the yogurt and smoked oil. Using a sharp chef's knife, carve the head into 5 thick wedges, slicing through the central stem to create 'steaks.' Serve immediately as a vegetarian centerpiece, ensuring each guest receives a portion of the mahogany-colored, smoke-infused crust.