In a Frozen Strawberry Margarita, which ingredient replaces the sour mix?

In a Frozen Strawberry Margarita, the ingredient that typically replaces the sour mix is a strawberry margarita or daiquiri mix. This mix often contains a combination of pureed strawberries, sugar, and lime juice, which provides the necessary tartness and sweetness that the sour mix would traditionally offer. The strawberry flavor enhances the overall taste profile of the margarita, aligning perfectly with its frozen characteristic. This substitution not only complements the strawberry aspect of the drink but also ensures a balanced flavor, making it a popular choice in frozen margarita recipes.

The other options do not serve the same purpose or provide the necessary flavor profile for a Frozen Strawberry Margarita. Regular lemonade, while tart, does not have the complexity and specific flavor notes that the margarita mix incorporates. Peach schnapps would introduce a completely different fruit flavor that could overshadow the strawberry. Blue curaçao, known for its bright blue color and orange flavor, would conflict with the intended strawberry taste, thus detracting from the drink's overall theme.