01 -
Place peeled and chopped potatoes in a large pot filled with salted water. Bring to a boil over high heat and cook until potatoes are fork-tender, about 15 to 20 minutes.
02 -
Drain potatoes thoroughly, then return them to the warm pot. Add heavy cream, melted butter, salt, and black pepper. Mash until the mixture is smooth and creamy.
03 -
Spoon mashed potatoes into a skull-shaped mold or shape by hand. Press firmly to ensure defined features, then carefully unmold onto a serving platter.
04 -
Cut black olives into small circles or strips. Place on the skulls to form eyes, mouth, and other spooky details as desired.
05 -
Scatter finely chopped chives or green onions over the top for garnish, if using. Serve warm.