Custrd is out now on the App Store and Google Play — Try it free for 7 days →
Back to recipes

Romesco Sauce with Grilled Onions

A smoky, nutty romesco sauce served over charred grilled onions – a simple Catalan-inspired dish that's perfect as a side or appetizer.

Total time
35 min
Servings
4
Calories
350
Protein
6g
Romesco Sauce with Grilled Onions
savorycomfortingSpanishveganvegetariangluten-freedairy-freenuts

Ingredients

8 items — tap to check off

Missing one? Custrd suggests a swap that works.

Open the app

Instructions

  1. Step 1

    Roast the 2 red bell peppers under a broiler or over a flame until skins are blackened, about 10 minutes. Place in a bowl, cover with plastic wrap, and let steam for 10 minutes.

  2. Step 2

    Peel the peppers, remove seeds, and place the flesh in a blender. Add 0.5 cup almonds, 0.25 cup breadcrumbs, 3 garlic cloves, 2 tbsp red wine vinegar, and 0.5 tsp salt.

  3. Step 3

    Blend while drizzling in 0.25 cup olive oil until smooth. Taste and add more salt if needed. Set aside.

  4. Step 4

    Peel and slice the 4 onions into 1-inch thick rounds. Brush both sides with the remaining 0.25 cup olive oil and sprinkle with the remaining 0.5 tsp salt.

  5. Step 5

    Grill the onion slices over medium-high heat until charred and tender, about 4-5 minutes per side. They should be soft and have nice grill marks.

  6. Step 6

    Serve the grilled onions on a platter with the romesco sauce spooned over the top. Enjoy warm or at room temperature.

Tools you’ll need

  • Blender or food processor
  • Grill or grill pan
  • Broiler or open flame
  • Bowl
  • Plastic wrap

Cook smarter

Get matched recipes for what’s in your fridge

Custrd is an iPhone and Android app that finds real recipes from the ingredients you already have. No more grocery-list aspirations. Try it free for 7 days.