Shake up all the ingredients with some ice. Then, strain out the ice and dry shake the drink, without ice. Pour the liquid into a glass filled with ice, spray some lemon zest on the foam and garnish it with the lemon peel.
60 ml Union Lemon & Leaf (or Spice & Sea salt)
30 ml Fresh lemon juice
15 ml Sugar syrup (or try a different infused syrup)