In a blender, add the mango slices, lemonade, lime juice, and lemon juice. Cover with the lid and blend just until smooth. Once the mixture is pureed with no lumps, taste and add 1/4 cup agave syrup at a time (until sweetened to your preference). Add the ice cubes and whirl until ice is just crushed and mixture well blended (do not allow the ice to become a puree). Pour in the tequila and Triple Sec, and stir together to combine.
On a small plate, combine 1 teaspoon coarse sugar with 1 tablespoon Tajin Spice; set aside. My personal preference is to mix a little sugar with the Tajin Spice to cut down on the heat which makes a nice sweet and spicy flavor contrast with the mango mixture. If you prefer, you can use straight Tajin Spice on the rim which also compliments the mango.
To rim the margarita glasses: Take a lime wedge and rub the drinking surface of the glass so it is barely moist. Dip the edge of the glasses into the prepared Tajin Spice mixture.
Pour the blended mango mixture into the margarita glasses rimmed with the prepared Tajin Spice mixture. Top each margarita drink with a teaspoon of Cherry Grenadine Syrup and gently stir to combine.
Garnish with a lime slice (optional).
Makes 4 to 5 servings.
Non-Alcoholic Version: Omit tequila and Triple Sec. Add an additional squeeze of juice from 2 fresh oranges or 1 cup of freshly-squeezed orange juice.
* How much ice you use depends on your taste. You may want to experiment with the ice.
** 1 fresh mango = I cup frozen mango slices.
*** You can use store bought lemonade or see my recipe for delicious homemade Lemonade.
**** Tajin Spice (salsa en polvo in Spanish) is a ground red chile pepper, salt, and lime seasoning. In Mexico this is very popular to sprinkle on fresh fruit such as melons and vegetables like cucumbers. This spice can be purchased at Hispanic food markets. Some grocery stores may carry in the Latin America food section or you can purchase Tajin Spice online. You can also use Li Hing Mui powder which comes from Hawaii. It is a salty dried plum powder which has a nice sweet and sour taste for the rim of the margarita glass. This also goes great with Mango Margaritias. This can be found in Asian specialty markets or ordered online: Li Hing Mui powder
Fresh Mango Margarita Recipe: https://whatscookingamerica.net/beverage/mango-margarita.htm