This eggnog is quite boozy, which is how we like it, but feel free to scale back on the rum, if desired.
Soak overnight in water to cover:
Drain and transfer to a blender along with:
Blend until completely smooth and creamy. Strain into a punch bowl or pitcher and stir in:
Serve garnished with:
If making ahead of time, the eggnog may separate when refrigerated. Simply let it sit for 20 minutes at room temperature, then whisk well or reblend before serving.