Great question! Since rum extract contains water, it can cause chocolate to seize if not handled properly. However, with only 1/4 tsp of rum extract in 8 ounces of dark chocolate, you should be okay as long as you add it carefully.
To prevent seizing, make sure to stir the
chocolate gently and ensure it’s completely melted before adding the extract. If you’re worried, you could try adding a bit more chocolate or a small amount of vegetable oil to the mixture to help maintain its smooth texture. Enjoy your chocolate creation!