Cut the top of your pumpkin or squash. Scoop out seeds and discard.
Whisk together all custard ingredients and pour into the gourds. Fill just below the top. Place the tops on smaller gourds or cook on the side for larger gourds.
Steam for 45 minutes to an hour. The custard may appear jiggly – check with a toothpick to ensure it has set.
Serve a little warm or at room temperature, slicing into wedges if desired.