Steps to Make Butterscotch Cake:

• Preheat your oven to 350°F (175°C). Grease and flour a 9x13-inch baking pan to prevent sticking.
• In a large mixing bowl, combine the yellow cake mix, instant butterscotch pudding mix, eggs, vegetable oil, and whole milk. Using a hand mixer or stand mixer, beat on medium speed until the batter is well blended and smooth, about 2-3 minutes.
• Pour the batter into the prepared baking pan, spreading it evenly. Bake in the preheated oven for 30-35 minutes or until a toothpick inserted into the center comes out clean. Allow the cake to cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.
• In a large mixing bowl, beat the softened unsalted butter until creamy. Gradually add in the powdered sugar, beating on low speed until combined. Then, add the butterscotch and 3 tablespoons of milk (or cream) and beat on high speed until the frosting is light and fluffy.
• Once the cake has completely cooled, use a spatula to spread the butterscotch frosting evenly over the top of the cake. If desired, drizzle additional butterscotch and sprinkle butterscotch chips on top for decoration.
• Slice the cake into squares and serve. Enjoy this delightful Butterscotch Cake with a cup of coffee or tea for a perfect afternoon treat!