1 cup roasted pistachio nut meats 1 12 cups white sugar، divided 34 cup all-purpose flour 34 cup cake flour 2 teaspoons baking powder 34 teaspoon salt 34 cup unsalted butter، at room temperature 4 large eggs 23 cup milk، at room temperature 2 teaspoons vanilla
Preheat oven to 350 degrees F (175 degrees C). Line 24 muffin cups with paper liners. Blend pistachios with 12 cup sugar in a blender until finely ground. Sift all-purpose flour، cake flour، baking powder، and salt together in a bowl. Beat 1 cup sugar and butter together in a large bowl with an electric mixer until light and fluffy. Beat one egg at a time into the creamy butter mixture، thoroughly integrating each egg before adding the next. Stir milk and vanilla extract together in a separate bowl. Alternately stir flour mixture and milk mixture in small amounts into the butter mixture beginning and ending with the flour mixture; stir just until it comes together into a batter. Fold the ground pistachios into the batter. Spoon batter into the prepared muffin cups to about 23 full. Bake in the preheated oven until a toothpick inserted into the center comes out clean، 15 to 18 minutes. Cool in the muffin cups for 5 minutes before removing to cool completely on a wire rack.