Ingredients
Method
Preparation
- Heat the oven to 350°F (175°C). Butter a medium baking dish and set it aside.
- Peel and slice the onions into rings about 1/4-inch thick.
- Melt the butter in a large skillet over medium heat. Add the onions and cook, stirring often, until they soften and begin to brown, about 10 minutes.
- In a bowl, whisk together the heavy cream, cheddar, Parmesan, and a good pinch of salt and pepper until smooth.
- Fold the softened onions into the cream-and-cheese mixture until coated.
Baking
- Transfer the mixture to the prepared dish, sprinkle breadcrumbs evenly on top.
- Bake for 25–30 minutes until the top turns golden and edges bubble.
Notes
If the onions are soggy, drain excess liquid before adding cheese to avoid a runny bake. For variations, stir in a teaspoon of smoked paprika or fresh thyme.
