Grilled Treviso Radicchio with Aïoli Recipe - Sunset Magazine

Ingredients

• 1 egg yolk
• 1 clove garlic, finely grated
• juice of 1 lemon, divided
• 1 tsp Dijon mustard
• ¾ cup olive oil divided, plus more for garnish
• 1 tsp salt
• ½ cup non-GMO sunflower oil
• 2 or 3 heads Treviso radicchio, halved lengthwise
• ½ cup olive oil
• 2 tbsp Muscatel vinegar
• flaky sea salt
• 1 bunch purslane, separated into small clusters of leaves