Butternut Squash Flan without spice

2 cups milk 1/4 cup milk , cold 1 vegetable bouillon cube 2 tablespoons cornstarch 1 large onion , chopped 2 tablespoons butter 2 tablespoons parmesan cheese[...]

2 1/2 lbs butternut squash, halved lengthwise and seeded 4 large eggs , plus 2 egg yolks 2 cups half-and-half 1 1/8 ounces finely grated parmigiano-reggiano[...]

1 small butternut squash, halved length-wise and seeded (about 1 1/2 pounds) 1 1/2 cups whole milk 4 large egg whites 2 large eggs 1/4 cup maple syrup 3[...]