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Meals

Onion boils.

Whole onions roast in foil with seasoned butter until soft enough to scoop. Despite the name, there is no boiling.

Makes
4 side portions
Hands-on
10 minutes
Total time
1 hour 10 minutes
Effort
Easy
Make it yourself ↓Buy premade ↓

GET WHAT YOU NEED

Your shopping list

For 4 side portions.

Large sweet onions

4

Fresh sweet Vidalia onions, 5 lb

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The recipe needs four large onions; package count and individual size vary.

Unsalted butter, melted

4 tablespoons

365 unsalted butter sticks, 16 oz

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Melt only the amount called for in the recipe.

Cajun seasoning

1 teaspoon

Slap Ya Mama Original Cajun Seasoning, 4 oz

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This Cajun seasoning already contains salt.

Salt

1 teaspoon; reduce for salty Cajun blends

Amazon Grocery fine sea salt, 16 oz

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Amounts are what the recipe uses, not package sizes. Compare quantities and product details before buying.

KEEP IT SIMPLE

Tools & supplies

STEP BY STEP

Make it

  1. Prepare onions

    Heat oven to 375°F. Peel onions and remove about 1/2 inch from their tops.

  2. Make wells

    Hollow a small well in each top, keeping the base and outer layers intact.

  3. Fill and wrap

    Mix butter with seasonings. Divide among onions, set each on foil and seal into upright packets.

  4. Roast

    Bake on the sheet for about 1 hour. Open carefully away from your face; a knife should enter the center easily. If firm, reseal and continue cooking.

Good to know

  • Serve as a vegetable side, with the collected butter spooned over it.
  • Large onions may need longer; tenderness matters more than the clock.
  • Refrigerate perishable leftovers promptly.

SAVE THE MAKING

Prefer it ready-made?

Compare these finished options with making your own.

Prepared roasted vegetables

A ready-made vegetable side, rather than an exact onion-boil match.

FreshDirect Roasted Brussels Sprouts, 12 oz

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A prepared Brussels sprout side, rather than a whole roasted onion. Follow the package reheating directions; delivery depends on your location.

Links go to the selected products. Availability and delivery vary by location; check the current listing and package size before ordering.

Sources & further reading

Independent instructions informed by the sources below. No affiliation or endorsement is implied. These instructions have not been kitchen- or workshop-tested by DIBuyIt.

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