Place the fresh mango and lime juice in a blender. Blend until totally pureed and smooth. It will be a bit thick! If it looks waaaay too thick, you can add some extra lime juice, but remember we will mix it with all the booze and soda.
In a large pitcher, stir together the mango puree, tequila, grand marnier, mint syrup and club soda. Add a few lime slices and some big handfuls of fresh mint. Stir. Taste and if needed, add more mint syrup and lime juice. Or tequila! Everyone likes their margaritas differently.
To serve, stir together the sugar, salt and chili powder. Rim a glass with a lime wedge and dip it in the chili salt. Fill the glass with ice and pour the punch in! Enjoy.
Add the water, sugar and mint leaves to a saucepan and heat over medium heat. Whisk constantly until the sugar dissolves and the mixture comes to a boil. Let it bubble for a minute or so, then reduce the heat and let it cool completely. I’ll usually put it in a bowl or jar, let it come to room temperature, remove the mint and then stick it in the fridge overnight if making it beforehand.
salty chili sugar
Combine sugar, salt and chili powder on a plate and stir well to combine before dipping each glass.