Step 1: Sauté the Foundational Vegetables
In a large Dutch oven or heavy-bottomed pot, heat the olive oil over medium heat. Once the oil is shimmering, add the diced yellow onions and bell peppers. Sauté, stirring occasionally, for about 7-8 minutes, until the vegetables have softened and the onions are translucent. This initial step builds the sweet, aromatic base of the chilli.

Step 2: Bloom the Spices
Add the minced garlic to the pot and cook for another minute until fragrant, being careful not to let it burn. Now, add all the spices: chili powder, cumin, smoked paprika, chipotle powder, oregano, cocoa powder, and coriander. Stir constantly for about 60 seconds. The spices will become incredibly fragrant. This step, known as “blooming,” toasts the spices in the oil, unlocking their full flavour potential and infusing the entire dish with their essence.

Step 3: Build the Chilli Base
Stir in the tomato paste and cook for another minute. This caramelizes the paste slightly, deepening its flavour. Add the diced sweet potato and zucchini to the pot, stirring to coat them thoroughly in the spice mixture.

Step 4: Add the Liquids and Legumes
Pour in the vegetable broth, crushed tomatoes, and undrained diced tomatoes. Use a wooden spoon to scrape up any browned bits from the bottom of the pot—this is where a ton of flavour lives! Stir in the rinsed black beans, kidney beans, pinto beans, and lentils.

Step 5: Introduce the Flavour Enhancers and Simmer
Add the soy sauce (or tamari) and the maple syrup (or brown sugar). These ingredients balance the acidity of the tomatoes and add that final layer of savoury depth. Give everything a final, thorough stir. Bring the chilli to a boil, then reduce the heat to low, cover the pot, and let it simmer for at least 1 hour. For the best flavour, aim for 1.5 to 2 hours. The longer it simmers, the more tender the vegetables will become and the more the flavours will meld. Stir every 15-20 minutes to prevent sticking at the bottom.

Step 6: Final Seasoning and Rest
After the long simmer, the chilli should be thick and fragrant. The sweet potatoes should be tender and the lentils cooked through. Taste the chilli and adjust the seasoning. It will likely need more salt and freshly ground black pepper. You can also add more chipotle powder if you desire more heat. For the absolute best results, turn off the heat and let the chilli rest for at least 15-20 minutes before serving. This allows the flavours to settle and deepen even further.