To make the syrup boil together the ingredients until the mixture reduces and forms a syrup, blend together and set aside.
Place a margarita glass into the freezer to chill or chill using ice.
Make the Tajin rim by place the tajin onto a flat plate. Using the lime wedge, rim half the glass and the dip into the Tajin.
For the cocktail, place the Peach Mampoer, Triple Sec, peace syrup & mint into a cocktail shaker. Using a muddling stick, muddle the ingredients until well combined. Squeeze in the lemon and add ice. Close the shaker and shake well. Strain into the prepared glass, garnish with fresh peach & serve.