Headnote

By utilizing a pressure cooker, we bypass the labor-intensive “constant stirring” of traditional polenta. The high-pressure environment forces water into the corn granules at temperatures exceeding 212°F (100°C), fully exploding the starch cells (gelatinization) in a fraction of the time. We finish this “Liquid Gold” with sharp cheddar and fresh jalapeño, creating a rich, spicy starch that stands up perfectly to smoky BBQ.

Teaching Idea: Alkaline Softening. Adding a tiny pinch of baking soda raises the pH of the cooking water. This helps break down the tough pectin in the corn’s outer hull, resulting in a smoother, creamier mouthfeel without adding more fat.

Ingredients

The Base

160 g (1 cup) Coarse Yellow Cornmeal (Polenta/Grits) — Do not use instant.
950 ml (4 cups) Chicken Stock or Water
2 g (½ tsp) Baking Soda
4 g (1 tsp) Diamond Crystal Kosher Salt

The Mantecatura (The Finish)

60 g (4 tbsp) Unsalted Butter, cold and cubed
115 g (1 cup) Sharp White Cheddar, grated
1 Jalapeño, finely diced (brunoise)
Fresh Cracked Black Pepper, to taste

Mise en Place

The Hardware: Set up your electric pressure cooker (Instant Pot) or stovetop pressure unit.
The Cheese: Grate the sharp cheddar by hand (pre-grated cheese contains anti-caking agents that prevent melting).
The Veg: Finely dice the jalapeño. Remove ribs/seeds for mild heat, or keep them for full “St. Louis” spice.
The Liquid: Measure your stock and water; ensure they are ready to pour.

Method

Phase 1: The Pressure Load Pour the chicken stock (or water) into the pressure cooker pot. Whisk in the baking soda and salt. Stream in the cornmeal in a slow, steady pour. Whisk continuously as you add it to prevent clumping. Why: Once the lid is on, you cannot stir. Ensuring the corn is suspended in the liquid at the start is critical to prevent it from scorching on the bottom.

Phase 2: The Gelatinization Secure the pressure cooker lid and set the valve to “Sealing.” Cook on High Pressure for 20 minutes. When the timer beeps, allow for a Natural Release for at least 15 minutes. Why: A “Quick Release” causes the super-heated starch bubbles to expand violently, which can clog the steam valve or spray hot corn foam. Natural release allows the starch structure to stabilize.

Phase 3: The Mantecatura Unlock and remove the lid. The mixture may look separated with water on top and corn on the bottom—this is normal. Whisk vigorously for 30 seconds. The mixture will instantly come together into a smooth porridge. Add the cold butter, grated cheddar, and diced jalapeño. Continue whisking until the fats are fully emulsified and the cheese is dissolved. Sensory Cue: The polenta should flow like “molten lava.” If it is too stiff (standing up on the spoon), whisk in a splash of hot water.

Phase 4: Service Serve immediately. This dish sets (hardens) quickly as it cools. Pairing Note: Serve as a bed for the Smoked Pork Steak, allowing the garlic-citrus meat juices to pool in the creamy corn.

Chef’s Notes

The “Fried” Leftover: Pour any leftover polenta into a greased square pan and refrigerate. The next day, cut it into squares and pan-fry in butter until crispy.
Cheese Selection: We use Sharp White Cheddar to cut through the richness of the corn, but Smoked Gouda is an excellent alternative that mirrors the hickory smoke of the pork.
Vegetarian: Substitute the chicken stock with water or vegetable stock for a meat-free version.

Glossary

Gelatinization: The process where starch granules absorb water and swell when heated, thickening the liquid.
Mantecatura: The final stage of polenta preparation involving vigorous whisking of fat (butter/cheese) into the starch to create a smooth emulsion.
Brunoise: A specific, very fine dice (approximately 3mm cubes) used for vegetables, ensuring even heat distribution.
Natural Release: A pressure cooking technique where the pressure is allowed to decrease slowly over time, minimizing starch foam formation.
Sensory Cue: A descriptor used to guide the cook’s perception of the dish’s texture and consistency, in this case, “molten lava.”