FoFa says:
"This is the absolute best way to cook Brussels sprouts. High heat searing caramelizes the outside and yields perfect crisp-tender texture inside. Use a 12-inch cast-iron pan, or work in two batches.
"
1 pound fresh Brussels sprouts
3 tablespoons canola oil
3/4 teaspoon kosher salt
1 tablespoon honey
1 tablespoon hot water
1 tablespoon minced garlic (about 2 cloves)
1 tablespoon soy sauce
1/4 teaspoon dried crushed red pepper $
1/2 cup torn fresh mint leaves
Heat a 12-inch cast-iron skillet over medium-high heat 5 minutes. Trim Brussels sprouts, and cut in half lengthwise. Add canola oil to skillet, and tilt skillet to evenly coat bottom. Place Brussels sprouts, cut side down, in a single layer in skillet. Cook, without stirring, 4 minutes or until browned. Sprinkle with kosher salt; stir and cook 2 more minutes. Stir together honey and hot water. Stir minced garlic, soy sauce, dried crushed red pepper, and honey mixture into Brussels sprouts. Stir in mint leaves, and serve immediately.