Slow Cooker Sweet Potato and Goat Cheese Gratin

Discover the effortless elegance of a slow-cooked gratin that brings together the savory depth of bacon and the natural sweetness of potatoes in a single, creamy dish.

This sweet potato and goat cheese gratin is a masterpiece of simple, high-quality ingredients working in harmony. By utilizing the slow cooker, the potatoes become incredibly tender, absorbing the richness of the heavy cream and the smoky, savory essence of the bacon.

It is an ideal side dish for busy evenings when a comforting, sophisticated meal is required without needing constant attention at the stove. The slow, gentle cooking process ensures that the flavors are deeply integrated, resulting in a texture that is both soft and satisfying, perfect for pairing with roasted meats or a crisp green salad.

Ingredients

Why this recipe works

The slow cooker method is superior for this gratin because it maintains a consistent, low temperature that allows the starches in the sweet potatoes to break down slowly.

This creates a natural thickening of the heavy cream, resulting in a velvety sauce that coats every slice without the need for additional thickeners or flour. The enclosed environment also prevents the cream from evaporating too quickly, ensuring the dish remains moist throughout the long cooking time.

Cooking the bacon lardons at the bottom of the slow cooker allows the fat to render and infuse the potatoes from the very start. As the bacon cooks in its own fat, it provides a savory base that contrasts beautifully with the sweetness of the potatoes. This method ensures that the smoky flavor permeates the entire gratin, while the rosemary essential oils are released slowly, infusing the cream and potatoes with an aromatic, woodsy fragrance that defines the dish.

Notes and substitutions

Selecting the right sweet potatoes is key to achieving a uniform texture. Choose potatoes that are relatively uniform in width so that the slices remain consistent in size. When preparing the bacon, ensure that the lardons are cut into small, equal pieces to facilitate even rendering.

If the bacon is particularly lean, a small amount of butter added to the bottom of the slow cooker can help prevent sticking, although the natural fat from the lardons is typically sufficient for a standard ceramic insert.

The choice of rosemary is crucial for the aromatic profile of this dish. Always use fresh, vibrant rosemary sprigs rather than dried, as the fresh variety provides a brighter, pine-like flavor that balances the richness of the heavy cream.

If the rosemary is particularly woody, strip the leaves from the stem before chopping them finely to ensure they distribute evenly throughout the layers. The heavy cream should be chilled until the moment it is poured to maintain its integrity during the initial heating phase.

• bacon lardons: diced pancetta or smoked ham for a different flavor profile
• fresh rosemary: fresh thyme or sage for a slightly different herbal note

Equipment

• Slow cooker
• Mandoline slicer or chef knife
• Measuring cups
• Cutting board