Prepare the sorbet: In the bowl of a food processor, combine the strawberries, lemon juice, orange flower water, sugar, and black pepper. Mix on medium speed until thoroughly combined and somewhat foamy. Transfer to a non-reactive bowl, cover, and refrigerate for at least one hour and up to overnight. When the mixture is chilled, transfer it to an ice cream maker and freeze according to the manufacturer’s instructions. Hold in the ice cream maker until ready to serve.