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This is the archived version of the Milk Street website and is no longer up to date.

Please visit 177milkstreet.com to see the current website with all of the latest recipes!

Slow-Roasted Fennel and Red Onions with Tahini and Spices

4 to 6 Servings

1¾ hours 15 minutes active

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Slow-roasting fennel and onions is one of the best ways to coax out their inherent sweetness. We start them in a covered baking dish, mixed with olive oil, tahini and seasonings, as well as water that creates steam to help them tenderize. They finish roasting uncovered to cook off any remaining moisture and develop deep, rich, flavorful caramelization. The vegetables are delicious warm or even at room temperature (but hold off adding the mint until ready to serve).

4 to 6

Servings

Tip

Don’t separate the layers after slicing the onion. It’s fine if a few rings separate, but try to keep the rounds mostly intact. Also, be sure to cover the baking dish tightly with foil to prevent steam from escaping too quickly.

1¾ hours

15 minutes active

Ingredients

  • ⅓

    cup extra-virgin olive oil

  • 2

    tablespoons tahini

Directions

Reviews
LORI Y.
December 23, 2025
Delicious!
We got fennel in our CSA and I wasn't sure what to do with it. Decided to try this since I had some tahini on hand and holy smokes was it good. This is definitely the type of recipe where the whole is greater than the sum of its parts!

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