This is called Driftwood Lemonade. I had a bourbon friend turn me to this drink a few years ago. The Evan Williams 100 proof is my go-to affordable cocktail mixer. It's fantastic.
For lemon cocktails I don't think anything is better than San Pellegrino. It's great with just regular bourbon, black cherry whiskey or honey whiskey.
2oz bourbon
2oz triple sec
4oz lemonade
