Brussels Sprouts Preparation: Ensure that the Brussels sprouts are halved or quartered uniformly to ensure even cooking. Pre-roasting them can enhance their flavor and texture.
Bacon Quality: Use high-quality, nitrate-free bacon for the best flavor. Cooking it until crispy adds a wonderful texture to the gratin.
Cheese Choices: Opt for cheeses that melt well, such as cheddar, Gruyère, or a combination. Gruyère adds a nutty flavor, while cheddar provides a sharp taste.
Creaminess: Adjust the amount of heavy cream based on your preference for creaminess. For a thicker gratin, use less cream or add a bit of cream cheese.