1: Elevate your classic potato casserole with secret ingredient #1: Gruyere cheese for a rich, nutty flavor.

2: Secret ingredient #2: Crispy pancetta adds a savory crunch to your potato casserole for a gourmet twist.

3: Upgrade your potato casserole with secret ingredient #3: Caramelized onions for a sweet and savory flavor profile.

4: Kick your potato casserole up a notch with secret ingredient #4: Fresh herbs like rosemary and thyme for added depth.

5: Get creative with secret ingredient #5: Dijon mustard adds a tangy kick to your classic potato casserole.

6: Elevate your potato casserole game with these top 5 secret ingredients for a delicious and impressive side dish.

7: Impress your guests with a gourmet twist on the classic potato casserole using these secret ingredients.

8: Upgrade your holiday menu with a decadent potato casserole featuring these top secret ingredients.

9: Transform your classic potato casserole into a standout dish with these five secret ingredients that will elevate your cooking game.