Butternut Squash With Pistou with whites

1 (1 1/2 lb) butternut squash , halved and seeded 2 tablespoons extra virgin olive oil salt & freshly ground black pepper 3 tablespoons butter 1 large leek ,[...]

1 (1 1/2 lb) butternut squash, halved and seeded 2 tablespoons extra virgin olive oil salt & freshly ground black pepper 3 tablespoons butter 1 large leek ,[...]

5 tablespoons unsalted butter 1/4 teaspoon crushed red pepper flakes 1 1/2 cups butternut squash 1/4 cup amaretto cookie crumbs salt 2 egg yolks 1/2 cup[...]