Sweet Potatoes with Bourbon and Maple

INGREDIENTS

• 3 tablespoons olive oil
• 1 1/2 cups strong hot coffee
• 3 tablespoons (packed) dark brown sugar
• Kosher salt and freshly ground black pepper
• 1/3 cup bourbon
• 1/2 teaspoons instant espresso powder
• 9 tablespoons unsalted butter, divided
• 9 tablespoons pure maple syrup
• 5 pounds red-skinned sweet potatoes (about 8 medium), peeled, cut into 2 1/2"-3" pieces
• 1/2 cup chopped smoked almonds (or toasted almonds)