Brush 1 jalapeño and 2 peeled garlic cloves with 1-2tsp olive oil. Place on a sheet pan & roast ~15 mins until pepper is softened & browning. Turn halfway through cook time.
To a blender add 1/2 cup olive oil, juice of 2 limes, 1T white wine vinegar, 1 roasted jalapeno, 2 roasted garlic cloves, 1/4tsp salt & handful of cilantro. Pulse until well blended.