Mix in remaining 1/2 cup of white chocolate ganache until smooth. (loveandoliveoil.com)
I also had some green tea and white chocolate ganache left over from the green tea cupcakes I'd made the previous week and it needed using up. (tinandthyme.uk)
Then, I poured lots and lots of that tasty peanut butter caramel inside, and topped it with a silky white chocolate ganache... and of course, sprinkles. (spachethespatula.com)