For 1 mimosa. Add 1 ounce orange juice, followed by 1/4 ounce Cointreau (if using). Then pour 3 ounces of cold sparkling wine ...

Flay's mimosa was meant to resemble a sunrise Flay ... putting this puree at the base of champagne flutes, and pouring the prosecco on top. Immediately, the mango puree mixed into the prosecco ...