Ingredients

• 16 frozen sweet potato puffs (such as Alexia®)
• 1 tablespoon vegetable oil
• 2 tablespoons butter, divided
• 4 leaves kale, coarsely chopped
• ¼ teaspoon salt
• ¼ teaspoon ground black pepper
• 4 slices sourdough bread
• 2 tablespoons mayonnaise
• 8 (1/2 ounce) slices Sriracha-flavored Gouda cheese (such as Roth®)
• 3 slices crisp-cooked bacon, halved