Combine the tequila, agave, and bitters in a rocks glass with ice and stir to combine.
Gently fold the orange peel lengthwise and twist it to express the oils over the glass. Then rub it around the rim and drop it into the drink to garnish.
Serve and enjoy. Cheers!
Notes
Find a tequila you enjoy - As with any spirit forward cocktail, the taste of the tequila matters the most in this drink. So take the opportunity to try different brands and different types. Here’s a good list if you’re looking for suggestions. Play around with bitters - Bitters are great at both enhancing the natural flavors of a drink as well as adding their own fun, unique flavors. Play around with what bitters you like in your tequila old fashioneds. If you want something that tastes more traditional, use Angostura bitters, or lean into a more Mexican flavor with mole, tamarind, or even charred pineapple bitters. Change up the sweetener - I love the taste of agave, so I enjoy using the agave nectar we call for in this recipe. That being said, regular simple syrup allows the tequila to shine on its own. Or use an orange liqueur, like cointreau, for a brighter, lighter sweetness.Tweak the proportions - Make it your own. Have a sweet tooth? Use half an ounce of agave nectar. Want the tequila to stand out more? Use 3 ounces instead of 2. And please play around with the amount of bitters. Even though a “dash” is technically defined, it tends to vary from recipe to recipe, so find what tastes good to you. At the end of the day, all that matters is that you enjoy your drink.No orange? - Add in a dash of orange bitters to replace the orange peel to get the right flavor.