Margarita Ice Cream - With fruit

1 (18.25 ounce) package white cake mix 3 egg whites 1 (10 fluid ounce) can frozen margarita mix (such as Bacardi®), thawed 2 tablespoons vegetable oil 1[...]

1/2 cup lime juice 2 tablespoons tequila 3 tablespoons orange liqueur (recommended -- Cointreau or Triple Sec) 1 1/4 cups powdered sugar 2 cups heavy cream 1[...]

4 cups low-fat vanilla ice cream , softened 1/2 cup lemonade concentrate, undiluted and thawed 1/4 cup tequila 2 tablespoons triple sec or 2 tablespoons Grand[...]