1 cupveloute sauce (prev. posted-made with fish stock for fish or chicken stock for chicken)
1 cupchampagne or 1 cup sparkling wine
1/2cupsweet onions or 1/2 cup shallot, minced
1/2cupbutter, cut into pats
1 1/2teaspoonsfresh tarragon, chopped
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Instructions
Place the onions and champagne into a sauce pan and bring it to a low boil and cook until it is reduced by half.
While the champagne and onions are cooking, heat but don't boil the veloute sauce.
Remove the champagne and onions from the heat and thoroughly stir in the veloute and the tarragon.
Lightly swirl the butter into the sauce and when the butter is very soft but not melted, spoon over fish or chicken (you want to have butter streaks on the sauce).