Butternut Squash With Pistou with cilantro

2 1/2 pounds butternut squash 2 tablespoons butter 2 tablespoons olive oil or canola oil 4 cloves garlic minced, normal size, or 2 large cloves, or to taste 4[...]

2 butternut squash, halved lengthways and seeds scraped out 1 tablespoon olive oil 1 red onion , chopped 2 red chili peppers , deseeded and finely chopped 2[...]