Skip to content
Join our Newsletter

Recipe: Get grilled asparagus to sing with Romesco sauce

Catalonian red pepper, almond and tomato sauce perfect summer condiment for veggies
Food Column American Tabl13.jpg
This June 16, 2018 photo shows Grilled Asparagus with Romesco Sauce from a recipe by Elizabeth Karmel in Amagansett, N.Y. (Elizabeth Karmel via AP)

It’s time to revisit grilled vegetables. I was recently tagged in a post where the author said that she was taught to grill vegetables dry and then season them when they come off the grill.

I don’t know what she was grilling and she seemed very happy with that method, but it made me think about all the people who were now going to try to grill their summer vegetables without oiling them first. And anyone who knows me knows my mantra is “oil the food, not the grates.”

It makes sense that you would oil the vegetables to keep all the juices inside and prevent them from drying out. After all, dried fruit and vegetables are made by slowly dehydrating (the juices out of) them. A little bit of oil creates a barrier that prevents the natural juices from evaporating as the vegetables cook and the oil promotes caramelization, a.k.a. those great grill marks. This is important, because grill marks equal flavour, and a juicy vegetable is much tastier than a dried-out one.

Grilled vegetables are good all on their own, but they are even better with a great Romesco sauce to drizzle over them or dip them into. Romesco sauce is a red pepper, almond and tomato sauce that hails from Catalonia, Spain, where it was originally served with seafood and charred onions. Romesco is gaining popularity here and it is my favourite summer condiment. I use it to dress up grilled shrimp, fish, poultry, meat and vegetables.

My version calls for fireroasted tomatoes and one large roasted red pepper, so it is more tomatoe-y than pepper-y, which is my preference. If you prefer the taste of red peppers to tomatoes, switch the ratios and use 1/2 the amount of tomato that I call for and double the red peppers. I don’t use the bread, which is in the classic recipe to thicken the sauce, because I don’t want to muddle the pure vegetable and roasted garlic flavour, and I like a looser texture.

This time of year, asparagus abounds. So, the recipe that I am featuring is for Grilled Asparagus with Fire-Roasted Romesco Sauce, but you can use the same basic principle for any quick-cooking vegetable. Just remember to place the vegetables horizontally across the cooking grates so you get maximum grill marks and they won’t fall through the grates.

Grilled Asparagus With Fire-Roasted Romesco Sauce

Serves: 4

Start to finish: One hour

Grilling Method: Direct/medium heat

Grilled asparagus is my favourite, but don’t stop there. Charred whole scallions, zucchini, yellow squash, roasted cauliflower, potatoes and mushrooms are all better for a bit of Romesco sauce. It’s all good. Throw in some grilled bread and it’s great.

1 lb. fresh asparagus (look for large stalks with firm deep green or purplish tips and moist ends)

• olive oil

• Kosher salt, about 1 tsp

• Romesco Sauce (recipe below)

Rinse asparagus and snap or cut off bottom. Place asparagus in a re-sealable plastic bag and drizzle just enough oil in the bag to coat all the spears. Seal bag and turn spears to coat evenly in the bag. Sprinkle with salt, reseal bag and turn again to evenly distribute the salt.

Place asparagus on the cooking grate over direct heat for three to five minutes or until marked and caramelized. Turn spears occasionally to grill each side. Asparagus should begin to brown in spots (this indicates that the natural sugars are caramelizing), but should not char.

Remove from grill and serve immediately with Romesco sauce.

Fire-roasted Romesco Sauce

Makes: About four cups

Grilling Method: Indirect/medium high heat

2 lbs. of ripe plum tomatoes or 2 cans Fire-Roasted Tomatoes

1 roasted red pepper (see recipe below)

1 head garlic, roasted (see recipe below)

3 Tbsp red-wine vinegar, more if needed

1/2 cup blanched or Marcona almonds

1 Tbsp freshly ground ancho chili

1Tbsp smoked Spanish paprika

1/2 cup extra-virgin olive oil, preferably Spanish

1-2 tsp kosher salt or sea salt; more to taste

1/4 tsp freshly ground black pepper

Wash and dry tomatoes. Cut out the core and drizzle the centre of each tomato with olive oil and season with salt and pepper. Place in a disposable aluminum tray and place in the centre of the cooking grate. Grill-roast for 30 to 45 minutes or until tomatoes are caramelized and soft. (Note, this is also a good time to roast the pepper and the garlic the pepper will take about 15 minutes and the garlic will take about 45 minutes.) Remove from grill and let cool in the pan, making sure to keep any of the juices that escaped.

Peel and seed peppers and remove garlic from skin and set aside. Using a food processor or a blender, place tomatoes, their juice, roasted pepper and roasted garlic together and purée. Add vinegar and almonds, and purée until smooth and uniformly chunky. Add ancho chili and smoked paprika and pulse to combine. Slowly add olive oil until you like the consistency of the sauce. Add salt and pepper and pulse to combine. Taste and adjust seasoning, if necessary, with salt and pepper. Use immediately or store covered in the refrigerator for up to one week. (I store the sauce in glass mason jars — this recipe fills two pint jars. You can keep one and give one away.)

Roasted Red Pepper

Rinse and dry pepper. Grill over high direct heat, turning until skin blackens and blisters all over. Remove from grill and immediately put in a paper bag or sealed plastic container until cool. Note: the steam will loosen the skin from the flesh of the pepper. Skin and seed the pepper (the skin will slip off easily). Use as directed in recipe.

• roasted garlic

• 1 head garlic

2 tsp olive oil

• pinch of kosher salt

Remove first layer of papery skin from garlic. Slice off top 1/2-inch from pointy top. Drizzle with olive oil and sprinkle with salt. Wrap in foil and cook on grill over medium-high indirect for 40 minutes or until cloves are golden-brown and soft. Alternatively, place in a 350 F oven. Remove from grill or oven and let cool. Follow recipe instructions.

Elizabeth Karmel is a barbecue and Southern foods expert. She is the author of three books, including Taming the Flame.