For simple syrup, combine water and sugar in medium saucepan. Bring to a boil over medium-high heat, stirring occasionally. Reduce heat to low and simmer 5 minutes or until sugar is completely dissolved. Remove from heat and transfer to glass bowl. Whisk in Fresh Peach Flavor; cool completely.

In food processor, combine raspberries, water, sugar, lemon juice and salt. Puree until smooth. Pour mixture into 9 in. x 9 in. square pan. Whisk in club soda and 1/2 cup simple syrup.

Freeze about 60 minutes or until frozen 1/4 in. around edges, about 60 minutes. Using a fork, scrape the granita to break up any frozen spots. Continue freezing, scraping granita every 30 minutes until fully frozen, about 2 hours total. Scoop flaked granita into serving dish and serve immediately.

**Store leftover simple syrup in refrigerator for up to 1 week**