Aunt Sassy Cake — Three Many Cooks

Ingredients

• 1 cup shelled pistachios (plus 1/3 cup for decorating)
• 2 1/2 cups cake flour
• 3/4 cup all-purpose flour
• 1 tablespoon baking powder
• 1 teaspoon baking soda
• 3/4 teaspoon salt
• 1/2 cup (1 stick) unsalted butter, softened
• 1/2 cup vegetable shortening
• 1 3/4 cups sugar
• 1 tablespoon. vanilla extract
• 1 large egg
• 3 large egg whites, at room temperature
• 1 1/2 cups ice cold water
• 1/4 tsp. cream of tartar
• 1 1/2 cups sugar
• 1/3 cup all-purpose flour
• 1 1/2 cups whole milk
• 1/3 cup heavy cream
• 1 1/2 cups (3 sticks) unsalted butter, soft but cool, cut into small pieces
• 1 teaspoon pure vanilla extract
• 3 tablespoons honey