Place the chocolate chips in a medium bowl and set them aside.
Warm the cream over medium heat or in the microwave (about 45-60 seconds). As soon as it starts to boil, remove it from the heat.
Immediately pour the hot cream over the chocolate chips. Let it stand for 3-5 minutes to allow the chocolate to melt, then whisk until smooth.
Chill the ganache in the refrigerator for at least 1 hour (or overnight) to allow it to fully set.
Once it reaches a thick but scoopable consistency, whip the ganache until soft peaks form and the texture is light and fluffy.
Notes
Heat the cream just until it starts to boil, or you may risk burning the chocolate.
You can also melt the chocolate using a double boiler. Place the chocolate chips and cream in a glass bowl over a small saucepan of simmering water. Stir frequently until smooth and fully combined.
Let the ganache set in the fridge for at least an hour before whipping it. If it’s too warm, it won’t whip up properly.
Over-whipping the ganache can cause a grainy texture, so stop mixing when you see soft peaks.