white sheet cake with salted peanut frosting

Ingredients For white sheet cake with salted peanut frosting

• FOR THE CAKE
• 1 c

  butter
• 1 c

  water
• 2

  eggs, beaten
• 2 c

  white sugar
• 1/2 c

  sour cream
• 1 tsp

  vanilla extract
• 2 c

  all-purpose flour
• 1/2 tsp

  salt
• 1 tsp

  baking soda
• FOR THE FROSTING
• 1/2 c

  butter
• 1/4 c

  half-and-half
• 4 1/2 c

  powdered sugar
• 1/2 tsp

  vanilla extract
• 2 c

  salted peanuts, chopped quite finely