Place dutch oven on stovetop over medium-high heat. Add 2 tablespoons refined coconut oil and continue heating pot until oil is hot and shimmery.
When oil is hot, add 3 cups diced white onion. Stir to incorporate, then sauté onions, stirring frequently, approximately 7 to 10 minutes or until onions are soft and translucent.
Once onions have softened, add 2-3 tablespoons minced fresh garlic and stir to incorporate. Sauté garlic, stirring constantly, 30 to 60 seconds or until fragrant.
Add 2 pounds lean ground beef to pot and stir to incorporate, breaking ground beef into small pieces. Cook ground beef until just browned and crumbled, approximately 7 to 10 minutes.
Add 2 teaspoons dried oregano, 2 teaspoons chili powder, 2 tablespoons chipotle chili powder, 1 teaspoon ground cumin, 2 teaspoons kosher salt, and 1 dash ground cinnamon to dutch oven. Stir to fully incorporate spices.
Pour 1 6-ounce can tomato paste into dutch oven and stir until all ingredients are well incorporated.
Add 2 14-ounce cans fire-roasted diced tomatoes, 3 cups low-sodium beef broth, 1 cup water, and 1 cup diced sweet potatoes to dutch oven. Stir well, making sure spices and tomato paste are incorporated into broth. Use wooden spoon to scrape bottom of dutch oven and loosen any ground beef or spices that may have stuck to pot.
Increase heat under dutch oven to high and bring liquid to rapid boil. Once boiling, immediately reduce heat under dutch oven to low.
Simmer chili, uncovered, 60 minutes minimum. Stir chili and taste occasionally, adjusting spices as desired.