Margaritas Maravillosos

1 (12 ounce) can frozen limeade concentrate

10 (1.5 fluid ounce) jiggers gold tequila

5 (1.5 fluid ounce) jiggers triple sec

2 tablespoons fresh lime juice

1 tablespoon freshly grated lime peel

4 teaspoons white sugar

5 cups ice

Pour the frozen limeade concentrate, tequila, triple sec, lime juice, lime zest, and sugar into a blender, and blend until thoroughly mixed. Serve in glasses over ice. If preferred, add ice cubes to margarita mix in the blender, and blend until slushy; pour into glasses.