Cut a 2 ½-inch-thick (6.5-centimeter) steak from the center of 1 head cabbage.
Use your fingers to gently spread the leaves apart, then tuck 7 grams garlic slices evenly between the layers on both sides of the cabbage steak.
Place the cabbage steak in the pan and drizzle 2 tablespoons olive oil evenly over the top. Sprinkle on half of the ½ teaspoon salt, flip the cabbage, then season the second side with the remaining salt.
Set the pan over medium heat and cook until you hear the cabbage start to sizzle. Turn the heat down and let it slowly pan-fry until the first side is lightly browned, about 15 minutes.
Flip the cabbage and continue pan-frying until the second side is lightly browned. The cabbage will release some liquid, but this is fine.
Turn the cabbage so the stem side is facing the pan.
Keep flipping and frying the cabbage until a skewer passes easily through the thickest part. If the cabbage starts browning too quickly, lower the heat and add 1 tablespoon of water. You can also press down on the stem area with a spatula to help it cook through faster.
The goal is a cabbage steak that's tender in the middle and caramel brown on all sides. This will take about 1 hour and 15 minutes.
Cut the cabbage steak into serving-sized portions, then drizzle with additional olive oil and a bit of balsamic vinegar before serving.