Cut passion fruit in half; scoop out pulp and press through fine sieve into bowl to collect juice and remove seeds. Stir in sugar until dissolved. (Can be prepared to this point, covered and refrigerated for up to 4 hours.) Divide between champagne glasses. Gently pour wine into each.
Tip: You can substitute 1 cup (250 mL) passion fruit juice blend for the passion fruit. Omit sugar.