Preheat the grill to high.

In a large saute pan over medium heat, add 2 tablespoons olive oil and butter to melt. Add the onions and saute, stirring constantly, until the onions are deep brown in color, about 20 minutes.

Brush the bread slices with olive oil. Rub the garlic clove on the bread and season with salt and pepper. Place on the grill in a single layer and cook until golden and crisp then repeat on the other side. Remove from grill and let cool slightly.

Top each piece of toast with a heaping spoonful of pork. Top with a spoonful of onions. Place a dollop of barbecue sauce on top of the bruschetta and garnish with chives.