1 1/2 cups unsalted butter, softened
3 cups granulated sugar
1 tsp kosher salt
5 large eggs
3 cups cake flour
1/2 cup Cherry 7 Up
1/2 cup maraschino cherries, stems removed, patted dry

FOR THE GLAZE:

2 cup powdered sugar, divided
3 Tbsp maraschino cherry juice
2 Tbsp milk