Ingredients

6 tablespoons butter, divided 3 large onions, halved and thinly sliced1 tablespoon sugar1/4 teaspoon salt12 dried figs, sliced1 cup water3 tablespoons honey12 slices slices Italian bread (1/2 inch thick)8 ounces Asiago cheese, sliced12 thin slices prosciutto3/4 cup crumbled goat cheeseBalsamic glaze, optional

Preparation

In a large skillet, heat 2 tablespoons butter over medium heat. Add onions, sugar and salt; cook and stir until softened, about 15 minutes. Reduce heat to medium-low; cook until deep golden brown, 30-40 minutes, stirring occasionally.

Meanwhile, place figs, water and honey in a small saucepan. Bring to a boil; reduce heat. Simmer, uncovered, until liquid is almost evaporated, about 20 minutes.

Preheat panini maker or indoor electric grill. Layer 6 slices of bread with Asiago cheese, prosciutto, goat cheese, caramelized onions and figs; top with remaining bread. Spread outsides of sandwiches with remaining butter.

Cook sandwiches, covered, until bread is browned and cheese is melted, 4-5 minutes. If desired, drizzle with balsamic glaze.