Part 1: Preparing the Brussels Sprouts

1. Wash and Dry: Thoroughly rinse the Brussels sprouts under cool water. It is absolutely crucial to dry them completely afterward. Pat them dry with a clean kitchen towel or use a salad spinner. Wet sprouts will steam in the pan instead of searing, which is the enemy of crispiness.

2. Trim and Halve: Place a sprout on your cutting board. Using your sharp knife, trim off the tough, dry stem end. Remove any outer leaves that are yellowed, wilted, or damaged. If the sprouts are small (about the size of a gumball), you can leave them whole. If they are larger, slice them in half vertically, from the top down through the stem. This creates a flat surface that is perfect for searing.

3. Set Aside: Place all your prepped sprouts in a bowl and set them aside. Mince your garlic and chop your parsley now so that all your ingredients are ready to go once you start cooking.

Part 2: The Perfect Pan-Fry

1. Render the Bacon (if using): Place your large cast-iron skillet over medium heat. Add the slices of bacon and cook, turning occasionally, until they are brown and crispy, about 6-8 minutes. Remove the bacon with tongs and set it on a paper towel-lined plate to drain, leaving the rendered bacon fat in the skillet. You should have about 2-3 tablespoons of fat. If you have too much, carefully pour some out. (If not using bacon, simply add your butter or oil to the skillet and let it heat until shimmering).

2. Sear the Sprouts: Turn the heat up to medium-high. Carefully place the Brussels sprouts in the skillet in a single layer, with the cut-side down. This is the key to getting that deep, dark char. Let them cook, undisturbed, for 4-6 minutes. Do not stir or shake the pan! You need to let them sit in one spot to develop that beautiful crust. You’ll know they’re ready to be moved when the cut-sides are deeply browned and caramelized.

3. Sauté and Season: Once the cut-sides are well-seared, use your tongs or a spatula to stir the sprouts. Continue to cook, stirring occasionally, for another 4-5 minutes, until the sprouts are tender-crisp and nicely browned all over.

4. Add Aromatics and Spices: Reduce the heat to low. Add the minced garlic to the pan and cook for about 30-60 seconds, stirring constantly, until it is fragrant. Be very careful not to burn the garlic, as it will become bitter. Immediately sprinkle the Cajun seasoning, ½ teaspoon of salt, and ½ teaspoon of black pepper over the sprouts. Stir everything together until the sprouts are evenly coated in the spices.

5. Final Touches: Crumble the cooked bacon and add it back to the skillet. Give everything one final stir to combine. Remove the skillet from the heat.

Part 3: Serving

1. Garnish and Serve: Transfer the hot Brussels sprouts to a serving dish. Squeeze a fresh lemon wedge or two over the top—the bright acidity will wake up all the flavors. Garnish with the chopped fresh parsley for a touch of color and freshness. Serve immediately while they are hot and crispy.