Take the tour ×  I was making a lemon meringue pie, which called
for 1/3 cup of corn starch and 1 1/3 cup of sugar, added to some
quantity of water. Silly me, I put the water in the pot first,
then the corn starch, and then — since I already had the 1/3 cup
measuring cup out — I decided to measure the sugar as 4/3 cups.
Problem is, I got distracted in the middle of measuring out the
sugar, and I got to a point where I had no clue whether I had
added 1 cup, or 1 1/3 cups, or possibly even 1 2/3 cups. Ooops.
Is there any way to recover from something like this? Preferably
without throwing out everything and starting over?  (Obviously,
the best way is to prevent yourself getting into such a
situation in the first place: measure each ingredient into a
separate vessel before you start combining, go ahead and dirty
two measuring cups, don't get distracted, etc. But I'm sure
we've all been there...)  For the record, for the pie in
question I decided to quit while I'm ahead and proceeded with
whatever mystery quanti