This homemade raspberry vanilla soda is aromatic and bubbly, and great for a refreshing summer drink.
In a small saucepan set over medium heat, combine the water, sugar, and raspberries. Cook for about 5 minutes until the mixture is bubbling away and the sugar is dissolved. Stir and cook this mixture for another 5 minutes, until the raspberries have cooked down.
Set a fine mesh strainer over a measuring cup or bowl and strain the saucepan mixture, pressing down on the raspberry pulp to squeeze out all the juice. Add the lemon juice and vanilla extract, and let this chill in the refrigerator.
To serve, fill a glass with ice and add 2-3 tbsp of the raspberry syrup. Add about a cup of seltzer on top, and enjoy!