Step 1

Preheat grill pan (or outdoor grill) to medium/ medium high heat.

Step 2

With a very sharp knife, cut each head in half through the root section and then in thirds. If you find that you have a small radicchio, simply cut the whole radicchio in quarters.

Step 3

Brush the sides of the radicchio with olive oil.

Step 4

Place on grill and carefully turn the radicchio every minute or so until the leaves begin to wilt. Continue to brush the tops with olive oil. This process should take about 5 minutes.

Step 5

Transfer the grilled radicchio to a serving plate and sprinkle with salt and pepper.

Step 6

Drizzle with balsamic vinegar.

Step 7

Serve immediately.