Slow-Roasted Garlic
Roasted garlic is the transformation of sharp, pungent cloves into a spreadable, mellow paste through long exposure to low heat. You achieve this by slicing the tops off whole bulbs, drizzling them with enough oil to pool in the cloves, and sealing them tightly in foil until the interior reaches the texture of room-temperature butter.
Patience creates the sweetness.
Do not rush the heat. If you turn the oven up to speed the process, the cloves will burn and turn bitter rather than caramelizing into a deep, jam-like consistency.
- baking sheet or small roasting pan
- heavy-duty aluminum foil
- chef's knife
What goes in.
- 4whole heads of garlic
- 3 tbspextra virgin olive oil
- 1 pinchsea salt
Locking in the steam
Creating an airtight pouch with the foil is essential. The garlic needs to poach in its own juices and the oil to soften completely without drying out.
The method.
Prep the bulbs
Preheat your oven to 375°F (190°C). Peel away the papery outer layers of the garlic heads, leaving the skin of the individual cloves intact. Use your knife to slice about 1/4 inch off the top of the bulbs, exposing the raw cloves inside.
Season and wrap
Place the bulbs cut-side up on a sheet of foil. Drizzle the oil over the exposed cloves, ensuring it runs down into the gaps. Sprinkle with salt. Fold the foil up around the bulbs to create a sealed packet.
Roast
Place the foil packet on your pan and bake for 60 to 70 minutes. You will know they are ready when you can pierce the cloves easily with the tip of a paring knife and the garlic smells sweet rather than sharp.
Cool and extract
Let the bulbs cool inside the foil for 10 minutes. Hold the root end and squeeze firmly; the soft, golden cloves will slide out of their skins in one piece.
Other turns to take.
Herb-Infused
Tuck a sprig of fresh rosemary or thyme into the foil packet before sealing to subtly perfume the oil.
Balsamic Finish
Drizzle a teaspoon of balsamic glaze over the exposed cloves before roasting for a darker, more complex sweetness.
When it doesn't go to plan.
Save the oil remaining in the bottom of the foil packet; it is infused with garlic and works well for finishing pasta or dressing greens.
Keep the roasted cloves in a sealed jar covered with oil in the refrigerator for up to a week.
Spread the roasted cloves onto toasted sourdough while still warm.
The ones that keep coming up.
Can I roast just one bulb?
Yes, but you may need to reduce the time by 10 minutes. Watch for the color change—they should be a deep tan, not dark brown.
How do I know if I have burned the garlic?
Burnt garlic turns hard and tastes acrid or metallic. If it looks very dark brown or black, discard those cloves.
How real cooks make it.
No one’s shared their version yet. Be the first to put your kitchen on the map.
Cook this your way?
Share your version — your steps, your story. We’ll feature it right here.
Add your recipe