This is a classic. Experiment with different Vermouths, but we like using Carpano Antica. While the balance is dependent on measuring accurately, we like to “spill” just a little extra Gin in the glass.
1oz J. Rieger & Co. Midwestern Dry Gin
1oz Sweet Vermouth
Combine all ingredients in rocks glass over ice and stir. Slide a slice of orange in as garnish.