A pressure cooker will melt cheese or chocolate to the right consistency much faster.
No hovering, measuring or constantly stirring , either.
The whole chocolate fondue-making process is basically hands-off until it’s time to dip in.
The same quick, moist cooking method works for most cheeses.
The key is to use a ramekin or other small bowl inside the pressure cooker.
Check out the link for the details and some suggested recipes.
Hot, Hot, Hot Chocolate Fondue| Hip Pressure Cooking