Janet, I answered the PM up above, but I'd say slightly reducing it would be fine
1/3 cup instead of 1/2 cup.
You can always taste it when finished and if you feel it's too strong, warm up just the sauce, remove from heat and add some pats of butter to soften the taste. Allow the butter to melt from the residual heat...don't use direct heat or it may separate.
Or have some heavy cream already reduced and add that at the end.