Method

Preheating: Preheat the oven to 190°C (375°F).

Dish preparation: Grease an ovenproof dish.

First layering: Arrange one-third of the zucchini and onion slices in the dish, overlapping slightly. Season with salt and pepper, then sprinkle with 0.5 cup of shredded cheese.

Continued layering: Repeat the layering process two more times, using all the zucchini, onions, and cheese.

Sauce preparation: In a microwave-safe bowl, combine garlic powder, butter, heavy cream, and xanthan gum.

Heating sauce: Heat the mixture for one minute or until the butter melts, then whisk until smooth.

Combining: Carefully pour the butter and cream mixture over the layered zucchini.

Baking: Bake for approximately 45 minutes, or until the liquid thickens and the top is golden brown.

Serving with ideas: Steak, Keto-Friendly, Kofta, Keto-Friendly, Grilled Lamb Chops, Keto-Friendly, Roasted Chicken, Keto-Friendly, Chicken Piccata, Keto-Friendly or Baked Mackerel, Keto Friendly.

Refrigerate: Store zucchini gratin in an airtight container in the refrigerator for up to 3-4 days.

Freezing: Wrap the dish tightly with plastic wrap then aluminum foil, and store in the freezer for up to 2 months. Thaw in refrigerator overnight before reheating in the oven.