According to Wikipedia, Butternut squash (Cucurbita moschata), also known in Australia and New Zealand as Butternut pumpkin, is a type of winter squash. It has a sweet, nutty taste similar to that of a pumpkin. It has yellow skin and orange fleshy pulp. When ripe, it turns increasingly deep orange, and becomes sweeter and richer. It grows on a vine. The most popular variety, the Waltham Butternut, originated in Waltham, Massachusetts, where it was developed at the Waltham Experiment Station by Robert E. Young. Butternut squash makes excellent first food for babies due to its high vitamins and calcium.
A pumpkin is a gourd-like squash of the genus Cucurbita and the family Cucurbitaceae (which also includes gourds). It commonly refers to cultivars of any one of the species Cucurbita pepo, Cucurbita mixta, Cucurbita maxima, and Cucurbita moschata, and is native to North America. They typically have a thick, orange or yellow shell, creased from the stem to the bottom, containing the seeds and pulp.
In Australian English, the name 'pumpkin' generally refers to the broader category called winter squash in North America.
Conclusion: Butternut squash and pumpkin are all different types of winter squash. Butternut squash can also be known as Butternut pumpkin to some and this is not to be confused with the pumpkin which is being called pumpkin. Get it? Now try explaining it to the people around you who have no idea of its difference and see if they understand....
Mighty Daddy have no issues getting the later from the local supermarket, its the former that is driving him crazy over the weekend. Not to say that one cannot serve pumpkin to a baby as it is also under one of the winter squashes, its just that others have specificially identified Butternut Squash as THE winter squash preferably served to babies. Thus the long arduous find for that elusive butternut squash in tiny Singapore.
For the record, Mighty Daddy combed no less than five supermarkets before finally getting to one that has it. He almost gave up searching for it and the fifth supermarket was his last try before throwing in the towel and be contended with offering pumpkin to me as a substitute. For all the perseverance, Thanks Ya Papa! =)