Parsnip Caramelized Onion Gratin Recipe

This elegant Parsnip Caramelized Onion Gratin is a flavor explosion! Sweet caramelized onions and subtly sweet prunes complement the earthy parsnips, creating a dish that's both comforting and sophisticated. Don't be intimidated – the prunes add depth of flavor you won't believe! Learn how to arrange the parsnips beautifully for a stunning presentation. The double layer of parsnips ensures a perfectly cooked gratin every time.

Prep Time 20 mins
Cook Time 90 mins
Calories 246.8 kcal
Protein 10g
Rating 4.0 (2 Reviews)
Parsnip Caramelized Onion Gratin 45

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Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Parsnip Caramelized Onion Gratin

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How to Make Parsnip Caramelized Onion Gratin

  1. Preheat oven to 400°F (200°C). Lightly grease a 1 ½-quart gratin dish with non-stick cooking spray or olive oil.
  2. In a large skillet, cook 2 large yellow onions, thinly sliced, in 2 tablespoons olive oil over medium-high heat until golden brown and caramelized, stirring frequently (approximately 10-15 minutes).
  3. Add ½ cup pitted prunes (roughly chopped), 1 teaspoon fresh thyme leaves, ½ teaspoon salt, and ¼ teaspoon black pepper. Mix well and remove from heat.
  4. Peel and thinly slice 1.5 lbs parsnips. Arrange half of the parsnip slices attractively in the bottom of the prepared gratin dish. Ensure they are not overcrowded.
  5. Spread the caramelized onion and prune mixture evenly over the parsnips. Top with the remaining parsnip slices, creating a double layer.
  6. Pour 1 cup of vegetable broth or chicken broth over the parsnips.
  7. Cover the gratin dish tightly with foil and bake for 60-75 minutes, or until the parsnips are tender.
  8. Remove the foil, baste the top with some of the pan juices, and broil for 2-3 minutes until the top is nicely browned.
  9. Let stand for 5 minutes before serving piping hot. Garnish with fresh thyme (optional).

Nutrition Information (Approximate per serving)

Sodium

24 g

Sugar

80g

Fat

2g

Carbs

17g