Pink Lemonade Buttercream Frosting

This is the recipe I found, but I don't think it needs as much powdered sugar as they say; maybe only 2-2.5 cups.

3 c. + 3 Tbsp. confectioner’s sugar
1 stick unsalted butter at room temperature
1/8 tsp. salt
2 Tbsp. pink lemonade concentrate
Red food coloring
Add the butter, confectioner’s sugar, salt, lemon juice, and a few drops of food coloring to the stand mixer and mix on low using the paddle attachment until combined. Turn the speed to med-high until the buttercream is fluffy and uniformly pink. Pipe or spread onto cooled cupcakes.