All ratios are written with the first number as the weight of chocolate and the second number as the weight of cream.

For example:
1:1 Dark Chocolate Ganache:
227g (1 c) heavy cream
227g (8oz) dark chocolate, chopped

1. Heat the heavy cream over medium heat until it comes to just below a boil.
2. Add the hot cream to the dark chocolate and let sit for two minutes.
3. Use a rubber spatula to stir everything together. Start by slowly mixing in the center and work your way out.