The easiest way to ruin quality spirit is by mixing it with cheap tonic water, which inevitably includes high-fructose corn syrup and artificial ingredients. But make your own botanical-packed tonic, and you elevate your entire cocktail game.

The DIY Tonic Water Kit from Oaktown Spice Shop is made in California and includes 1 pound of tonic ingredients: citric acid, organic lemongrass, cubeb pepper, Jamaican allspice and cinchona (a natural muscle relaxant). You get enough raw materials to make 1 quart of all-natural tonic syrup. Dilute the concentrate with soda water to make up to 60 servings of flavorful tonic water. Mix it with whatever gin you have on hand and you’re sure to wow any G&T connoisseur.