If malt isn't your thing, I recommend replacing the cup of malted milk powder in the recipe with an additional cup of confectioner's sugar. (e2bakesbrooklyn.com)
3 cups all purpose flour 1/2 cup malted milk powder 1 tablespoon cornstarch 1 teaspoon baking powder 1/2 teaspoon baking soda 1 teaspoon Kosher or sea salt 1 cup unsalted butter, softened to room temperature 1 cup granulated sugar 1/2 cup light brown sugar, packed 1 large egg + 1 large egg yolk, room temperature 4 teaspoons real vanilla extract 1 cup white chocolate chips (e2bakesbrooklyn.com)
Place softened vanilla ice cream and remaining 2 tablespoons of malted milk powder in a bowl. (bakinandeggs.com)