Heat 2 tbsp olive oil in a large heavy-bottomed pot over medium-high heat. When the oil shimmers and moves freely, you're ready—this takes about 2 minutes. Don't skip this step because cold oil won't properly sear the chicken exterior, and you'll miss that crucial browning that adds depth.
Season chicken thighs with salt and pepper on both sides. Place them in the hot oil and let them sit undisturbed for 4 minutes—resist the urge to move them. I confess I used to flip constantly, which just steams the meat. You want deep golden color on the first side, which means listening for that audible sizzle.
Flip each thigh and cook the second side for 3 minutes. The chicken doesn't need to be fully cooked through yet because it'll finish in the coconut sauce. This is the moment to sprinkle turmeric and ground coriander directly onto the hot chicken surface.
Add chopped onion to the pot and stir constantly for 2 minutes. The onion will stick slightly to the chicken and caramelize at the edges—this is exactly what you want. Add red curry paste and ground cumin, stirring until the paste coats every piece of chicken, about 1 minute.
Pour in 1 cup chicken broth and 1 cup coconut milk slowly while stirring. The liquid will bubble aggressively—that's the residual heat reacting with cold liquid. This takes about 90 seconds to fully incorporate. Once smooth, add diced tomatoes and bring the entire pot to a gentle simmer.
Reduce heat to low and cover the pot partially with a lid. Simmer for 35 minutes, checking at the 25-minute mark that chicken reaches 165°F when tested with a meat thermometer at the thickest part. The sauce will reduce slightly and intensify in flavor, which is exactly what should happen.
While the curry simmers, prepare basmati rice according to package directions—usually 1 cup rice to 2 cups water, 15-18 minutes covered. Fluff with a fork just before serving. Tear fresh cilantro leaves and set aside with lime wedges.
Taste the finished creamy coconut chicken curry cozy and adjust seasoning with salt or lime juice. Sometimes Jake asks for "the spicy part," so I reserve a pinch of red curry paste mixed with lime juice to drizzle on his portion separately.