Report Abuse. This isn't quite exact, but 1/4 cup of butter (so a half stick if you're in the US) is 57 grams according to the conversion chart from allrecipes below. So use just a slightly heavy 1/4 cup or 1/2 stick. By the way, a 1/4 cup is 4 Tablespoons.
Normally, this species is 57 to 95 cm (23â37 in) long, not counting a tail of 35â45 cm (14â18 in). The female is shorter than the male. The otter's average body weight is 7 to 12 kg (15.4â26.4 lbs), although occasionally a large old male may reach up to 17 kg (37 lbs). The record-sized specimen, reported by a reliable source but not verified, weighed over 24 kg (53 lbs).
The North American river otter is a stocky animal of 5 to 14 kilograms (11 to 31 lb), with short legs, a muscular neck no smaller than the head, and an elongated body that is broadest at the hips. An average adult male weighs about 11.3 kilograms (25 lb) against the female's average of 8.3 kilograms (18 lb).