Follow these straightforward steps to create your Grilled Plums with Rosemary Balsamic Glaze:

1. Prepare the Plums: Wash the plums thoroughly, then slice them in half and remove the pits.
2. Make the Glaze: In a small saucepan, combine balsamic vinegar, honey, salt, and pepper. Heat over medium heat, stirring occasionally until it reduces slightly and becomes syrupy, about 5 minutes.
3. Infuse with Rosemary: Add the finely chopped rosemary to the balsamic glaze. Stir well and remove from heat.
4. Brush with Oil: Lightly brush each plum half with olive oil to prevent sticking during grilling.
5. Preheat the Grill: Preheat your grill on medium-high heat. If using an outdoor grill, make sure it’s clean and well-oiled.
6. Grill the Plums: Place the plum halves cut-side down on the grill. Grill for about 3-4 minutes, until grill marks form. Flip and grill for another 2-3 minutes on the skin side.
7. Coat with Glaze: Once off the grill, drizzle the rosemary balsamic glaze over the warm plums or brush it on for a generous coat.
8. Serve Warm: Let the plums rest for a minute or two before serving. This allows the glaze to settle slightly.

With these steps closely followed, you will have a flavored masterpiece that highlights the wonderful ingredients used.