Ingredients

• 1 cup unsalted butter at room temperature
• 2 cups white sugar
• 4 large eggs
• 2 teaspoons vanilla extract
• 5 cups all-purpose flour
• 1 teaspoon salt
• 0.5 teaspoons baking soda
• 3 cups prepared frosting

Instructions

1. 1 Preheat oven to 375 degrees F (190 degrees C). Line a 10x15-inch baking pan with parchment paper.
2. 2 Place butter and sugar into the work bowl of a large stand mixer fitted with paddle attachment; mix on medium-high speed until butter and sugar are light and fluffy, 2 to 3 minutes.
3. 3 Beat eggs into butter mixture one at a time, letting each egg blend in before adding the next. Beat in vanilla extract. Whisk flour, salt, and baking soda together in a separate bowl. Gradually beat flour mixture into moist ingredients, blending each portion in before adding more. Spread dough into prepared pan.
4. 4 Bake in the preheated oven until lightly golden brown and a toothpick inserted into the center comes out clean, 30 to 35 minutes. Let cool completely in pan.
5. 5 Remove from pan and spread frosting over the top; cut into bars and serve.

Nutrition per serving