Chambord Champagne Cocktail A half hour before guests arrive, chill bottles of Champagne in cooler or bucket filled with half ice, half water. The serving temperature for Champagne should be approx. 43-48 DF. Drop one blackberry or two raspberries in each Champagne flute and carefully add one teaspoon of Chambord onto the fruit. When guests arrive, pop the first cork and fill glasses. The golden Champagne will turn dark pink and the berries will float to the top.