Report Abuse. Very very little. 1 teaspoon will substitute for a 1/2 to 1 cup chopped onion. But really there is no substitute for chopped fresh onion. The fresh onion will add a sweetness to the dish and season it without any bitterness or off flavor.JEN Â· 7 years ago. teaspoon will substitute for a 1/2 to 1 cup chopped onion. But really there is no substitute for chopped fresh onion. The fresh onion will add a sweetness to the dish and season it without any bitterness or off flavor. JEN Â· 7 years ago.
Officially, a US Cup is 240ml (or 8.45 imperial fluid ounces.) This is slightly different from an Australian, Canadian and South African Cup which is 250ml.
0.25 quarts in a cup. 1/4 of a quart equals a cup. That is because there are 4 cups in a quart. 4 cups equals one quart. 1 US cup = 0.25 US quarts.