To make the lemon sugar. Combine the lemon zest, sugar, and rose petals on a shallow plate. Rim your glasses in the sugar mix, then fill with ice.In a cocktail shaker or glass jar, muddle the raspberries, rosemary, and lemon juice, squashing everything to release the juices. Add the apple cider vinegar, jam, and vodka. Fill with ice and shake until combined.Strain into your prepared glass. Top off with sparkling water, then gently stir to combine. Finish with a cherry on top. Enjoy.