Pumpkin BBQ Pulled Pork Eggs Benedict

Name: Pumpkin BBQ Pulled Pork Eggs Benedict
Ingredients: * 2 tablespoon olive oil; * 3 pound pork shoulder, boneless; * 1 tablespoon salt; * 1 teaspoon freshly cracked black pepper; * 1 cup pumpkin beer; * 2 cup veggie chicken stock; * 1 large onion, sliced (about 2 cup); * 3 garlic clove, smashed; * 1/4 teaspoon cinnamon; * ⅛ teaspoon clove; for the pumpkin barbecued sauce; * 1 tablespoon olive oil; * 1/2 cup diced onion; * 3 garlic clove, diced; * 1 15 ounce can pumpkin puree; * 1/2 cup pumpkin beer; * 1/3 cup balsamic vinegar; * 1/4 cup molass; * 2 tablespoon real maple syrup; * 1 teaspoon salt; * ⅛ teaspoon liquid smoke; * 2 teaspoon ground mustard; for the hollandaise; * 3 yolk of large egg, room temperature; * 6 tablespoon unsalted butter,