When the beef hits the hot skillet, it should hiss and pick up dark brown patches before it goes anywhere near the slow cooker. That little bit of color gives this Slow Cooker Texas-Style Chili with Masa and Cumin a deeper, more savory start than the slow cooker can create on its own. The long cook then turns the chuck tender while the chili powder and cumin settle into the broth.
I like this version when I want a bowl that’s substantial and beef-forward, not a thin soup or a tomato-heavy stew. Masa harina goes in near the end, so the finished chili has a gently thickened texture without losing those tender chunks of beef. It’s a cozy, practical dinner that doesn’t need much attention once the slow cooker is covered.
Kitchen Note
Keep the beef pieces close to the 1-inch size. Smaller pieces can lose their shape over the long cook, while oversized chunks won’t brown as evenly within the batch time.
Save this slow cooker Texas-style chili for its tender beef, warm cumin, and masa-thickened broth.
Why Masa Gives This Chili Body Without a Long Reduction
A slow cooker keeps moisture trapped, so the broth won’t reduce the way it would in an uncovered pot on the stove. Masa harina solves that without asking the beef to cook down in a thick sauce for hours. It brings a subtle corn character, too, which fits naturally beside the cumin and chili powder.
Adding the masa at the end gives you more control over the finished texture. The beef gets its long, gentle cook in the broth first; only after it’s tender do you stir in a smooth masa-and-water slurry. That way, the thickener doesn’t sit at the bottom through hours of cooking or leave the chili heavier than you want.
Tomato paste is here for savory depth, not to turn the pot into a tomato-based stew. Between that concentrated base and the masa finish, the broth tastes rounded and substantial while the beef stays at the center of every spoonful.
What the Beef, Cumin, and Masa Each Bring to the Pot
- Beef chuck — Chuck has enough connective tissue to become tender during a long, moist cook. A leaner cut won’t give the same succulent texture, so stick with chuck; a standard roast works well without paying extra for a premium grade.
- Chili powder and ground cumin — These are the main flavor builders, so freshness matters more than choosing an expensive brand. Older spices lose their aroma and leave the finished chili flatter; give yours a quick sniff before measuring.
- Masa harina — This finely ground corn flour thickens the broth and adds a gentle corn note that cornstarch can’t replicate. Use masa harina rather than coarse cornmeal, which won’t dissolve into the same smooth finish.
- Tomato paste — A small amount adds concentrated savory depth without making the chili taste like tomato sauce. The standard grocery-store tube or can is fine; there’s no need for a specialty brand.
- Beef broth — Broth carries the browned skillet flavor into the slow cooker. Choose one you like the taste of on its own; if you need a gluten-free pot, use certified gluten-free beef broth in the same amount.
- Onion, garlic, and oregano — The onion softens into the base, while garlic and oregano round out the spice. Fresh garlic is worth using here because it cooks briefly with the spices; dried oregano is already the form used in this recipe.
Building the Chili in the Skillet Before the Slow Cooker Takes Over
Brown the Beef in Batches
Season the beef with kosher salt and black pepper. Heat the vegetable oil in a 12-inch skillet over medium-high heat, then brown the beef in batches, turning it to color several sides; allow about 8 minutes per batch. Transfer the browned pieces to a 6-quart slow cooker. Give each batch enough space to brown instead of piling all the meat into the skillet at once.
Soften the Onion and Wake Up the Spices
Add the diced onion to the same skillet and cook, stirring, until softened, about 5 minutes. Stir in the minced garlic, chili powder, cumin, oregano, and tomato paste, and cook for 30 seconds. Keep the mixture moving so the garlic and spices become fragrant without scorching. Pour in the beef broth and scrape up the browned bits from the bottom of the skillet.
Slow-Cook Until the Chuck Turns Fork-Tender
Pour the broth mixture over the beef in the slow cooker and stir to combine. Cover and cook on LOW for 8 to 9 hours or on HIGH for 4 to 5 hours. The beef should be fork-tender and reach at least 145°F. Use tenderness as your cue as well as the clock; the cubes should give easily when tested with a fork.
Thicken with a Smooth Masa Slurry
Whisk the masa harina with cold water until smooth, then stir the slurry into the chili. Cover and cook on HIGH for 20 to 30 minutes, until the broth has thickened. Whisking the masa with cold water first helps it blend into the pot rather than leaving dry pockets. Let the chili rest for 10 minutes before serving.
Three Ways to Tune the Cumin, Corn, and Gluten in This Chili
Make the pot gluten-free
Use certified gluten-free beef broth and certified gluten-free masa harina, keeping the same amounts. The chili stays close to the original; the corn thickener itself is naturally gluten-free, but certified ingredients help avoid cross-contact.
Push the cumin forward
Use 1 1/2 tablespoons of ground cumin instead of 1 tablespoon. The chili will taste earthier and more cumin-led, while the beef and chili powder still anchor the bowl.
Keep the masa finish a little lighter
For a looser broth with less corn flavor, whisk 1 1/2 tablespoons masa harina with 2 tablespoons plus 2 teaspoons cold water. Stir it in at the same point and cook on HIGH until the chili thickens to your liking.
Storage and Reheating
- Refrigerator: Store in an airtight container for 3 to 4 days. The chili will thicken as it cools.
- Freezer: Freeze in airtight containers for up to 3 months. Thaw in the refrigerator before reheating.
- Reheating: Warm gently in a saucepan, stirring, until steaming hot throughout and 165°F. If it has become too thick, loosen it with a splash of beef broth rather than letting it boil hard.
Questions That Come Up Before the Slow Cooker Goes On
Slow Cooker Texas-Style Chili with Masa and Cumin
Ingredients
Equipment
Method
- Season the beef with the salt and pepper.
- Heat the oil in a 12-inch skillet over medium-high heat and brown the beef in batches, turning to brown several sides, about 8 minutes per batch.
- Transfer the beef to a 6-quart slow cooker.
- Add the onion to the skillet and cook, stirring, until softened, about 5 minutes.
- Stir in the garlic, chili powder, cumin, oregano, and tomato paste and cook for 30 seconds.
- Pour in the beef broth and scrape up the browned bits from the skillet.
- Pour the mixture over the beef and stir to combine.
- Cover and cook on LOW for 8 to 9 hours or HIGH for 4 to 5 hours, until the beef is fork-tender and has reached at least 145°F.
- Whisk the masa harina with the cold water until smooth.
- Stir the masa mixture into the chili.
- Cover and cook on HIGH for 20 to 30 minutes, until the chili has thickened.
- Let the chili rest for 10 minutes before serving.