I'm confused KY. Halving a cup gives you half a cup. A cup of water has an exact equivalent in weight. If a cup of water weighs 236.588 A half a cup of water will weigh 118.294 grams. It will always weigh 118.294 gms. (And these picky measures tell you that when they made the recipe they rounded out the measures to make them in cups, which show you that the precision to the gram is irrelevant)

So what is the difference between half the weight and half the volume (of the SAME ingredient)? if the recipe has used cups, it can be halved in cups, and if it used grams it can be halved in grams. If it was designed using some other measure, it;s not like that measure changes when it's halved.

If you want to go back to the proportions, then the proportions are made in weight and you can't substitute PROPORTIONS of weight with PROPORTIONS of volume. But if the proportions have generated a RECIPE using volume or weight, you can half the recipe all you want.

The confusion about whether you can half a recipe, tcollins, comes in for other stuff, like cakes. If you make a very large (wide) cake, the baking powder has to be decreased and you may have to develop a little more gluten to hold the dome up structurally. That;s all. And of course, the creaming will be harder if you have a small mixer.

If you're doubling a recipe requiring sauteeing or browning meat, you would either need a gigantic frying pan or have to divide the quantities in two pans to get the same browning.

But in both these cases, halving is not a problem.

And bread is most forgiving. Making it smaller will NOT affect anything. You can go ahead and half the recipe, i've done it scores and scores of times and never had a problem. It might be a problem for a half a loaf, only in the baking, which would probably need lower temp and surely lower time. But what i understand you want to do is make one loaf not two. I;ve also made rolls from bread recipes and bread from roll recipes. Worked well in every case I tried.

Doubling it could be a problem but not for the ingredients, simply for the mass that you would have to knead - which nevertheless could be divided up and kneaded. But halving will not affect the result.

Last edited: Jan 20, 2011