Pistachio Pudding Cake

I came across this one on St. Patrick's Day and knew I "had" to make it. Pistachio anything is probably my second favorite, next to hazelnut as my number one. Pistachio pudding is very nostalgic for me as a kid. I liked that this recipe included walnuts rather than pistachios, but I think either one would have been just fine. Allow extra time for the cooling and chilling. This cake was good at room temperature, but I think it was even better after refrigeration.

https://www.tasteofhome.com/recipes/pistachio-pudding-cake/