Peanut Butter Texas Sheet Cake

Ingredients

• 1/4 cup creamy peanut butter
• 1 cup milk
• 1/2 cup unsalted butter
• 1 cup granulated sugar
• 1 cup light brown sugar
• 2 cups all purpose flour
• 1 teaspoon salt
• 1 teaspoon baking soda
• 2 large eggs
• 1 teaspoon vanilla extract
• 1/2 cup buttermilk
• 3/4 cup unsalted butter
• 1/2 cup creamy peanut butter
• 1/3 cup buttermilk
• 3 1/2 cups powdered sugar (sifted)
• 1 Tablespoon vanilla extract
• 1/4 cup peanuts (optional, for decoration)