Use real maple syrup (and which grade)
Reach for pure maple syrup, not pancake syrup, which is mostly corn syrup and artificial flavor. Grade A dark (once called Grade B) has the deepest, most robust maple flavor and stands up best to the tequila and lemon. Grade A amber is lighter and more delicate if you want a subtler drink. A little goes a long way, so start with 0.75 oz and adjust.
Maple vs agave vs simple syrup
Maple is what makes this a winter cocktail rather than a standard sour. It brings caramel and warm spice that agave and plain simple syrup cannot. Swap in agave and you get our year-round Añejo Agave Sour; swap in simple syrup and you get a cleaner, more neutral classic. Maple is the seasonal signature here.
The dry shake and egg white foam
Shaking the egg white with no ice first whips it into a thick, stable froth, then a second shake with ice chills and dilutes the drink. Skip the dry shake and the foam collapses. For a vegan version, use about 0.75 oz aquafaba, the liquid from a can of chickpeas, which foams just like egg white with no flavor of its own.
Nutmeg and warm winter spice
A dash of nutmeg in the shake and a dusting on the foam is what gives this drink its holiday character. Freshly grated nutmeg is far more aromatic than pre-ground. Add a whisper of cinnamon or a single clove-studded garnish for an even cozier, mulled feel.
Batch it for a holiday party
For a crowd, pre-mix the tequila, lemon and maple by your guest count and keep it chilled. Add egg white or aquafaba and dry shake in small batches to order so the foam stays fresh, then dust each with nutmeg. Shaking to order is worth it here; the froth is the whole point.
More maple and winter cocktails
Love maple in a glass? Try it swapped into an old fashioned, or lean fully seasonal with our other winter tequila cocktails. This maple sour sits right alongside spiced, citrus and cranberry drinks for a full cold-weather lineup. See the linked collection below for more holiday tequila cocktails.