Mix cinnamon and sugar together on a plate. Drizzle the edge of a coupe glass with caramel syrup, allowing it to drizzle into the center of the glass. Then roll into the cinnamon sugar mixture until the edge is evenly coated.
Begin by adding two 3-inch sprigs of thyme to your shaker. Carefully muddle them until leaves are crushed (but not pulverized), releasing their fragrant oils.
Add apple cider, gin, St. Germain, lemon juice, maple syrup, angostura bitters, and ice to shaker. Shake thoroughly before double straining into coupe glass. Garnish & serve!
Notes
If cinnamon and sugar isn't sticking to the rim, you may want to pour some caramel onto the plate, dipping the outer edge of the rim to coat it before dipping back into the sugar and cinnamon.
For the best results, chill martini glasses for 15 minutes in the freezer before preparing your apple cider martini!
If your muddler has grooves that seem to trap the thyme leaves (preventing them from being muddled properly), you might have more luck using the smooth end. Don't have a muddler? You can also use the back of a spoon!
"Double straining" refers to straining a cocktail through both a Hawthorne strainer and a fine mesh strainer. The Hawthorne strainer sits atop the shaker to catch the larger ingredients (such as ice cubes) while the fine mesh strainer filters out the smaller ingredients, such as the thyme leaves.