3 Tbsp butter or margarine
2 medium onions, sliced
8 slices (1 oz each) provoloneor Monterey-Jack cheese
1 round foccacia bread (10-12 inches in diameter), cut horizontally in half
Melt butter in 10 inch skillet over medium-low heat. Cook onions in butter 15-20 minutes, stirring occasionally until onions are brown and caramelized; remove from heat.
Heat oven to 350°. Place half of the cheese on bottom half of foccacia. Top with onions and remaining cheese.
Replace top of foccacia. Wrap tightly in aluminum foil. Bake 15-20 minutes or until cheese is melted. Cool 5 minutes.
Cut into wedges
Source: Betty Crocker