This pistachio cake is unbelievably soft, moist, and full of rich nutty flavor. It tastes like it came straight from a bakery but is easy to make at home.
Preheat oven to 350°F (175°C) and prepare a cake pan.Grind pistachios until fine.Beat butter and sugar until fluffy.Add eggs one at a time, then mix in vanilla.Combine flour, baking powder, salt, and pistachios.Alternate adding dry ingredients and milk to the batter, then mix in oil.Pour into pan and bake for 30–35 minutes.Cool completely before serving.