Easy Sticky Buns

Bahan-bahan (12 porsi)

• 12 Tbsp . (1 1/2 sticks) unsalted butter, at room temperature
• 1/3 cup light brown sugar, lightly packed
• 1/2 cup pecans or walnuts, chopped in very large pieces
• 1 package (17.3-ounces/ 2-sheets) frozen puff pastry, defrosted
• 2 Tbsp . unsalted butter, melted and cooled
• 2/3 cup light brown sugar, lightly packed
• 3 tsp . ground cinnamon
• 1 cup raisins (optional)