Chop your chocolate in dime size, or smaller, chunks and set aside in a medium microwave safe bowl
Measure out your honey u0026 corn syrup u0026 add to your chopped chocolate. Give it a quick stir to combine
Add your passion fruit purée to a 2 quart or larger saucepan over medium-high heat and begin reducing the purée.
Stir frequently, using a whisk, wooden spoon, or spatula. Watch very carefully u0026 do not leave your pot unattended. Boil over can happen within seconds. If purée rises too close to top of pan, quickly lift pan off burner for few seconds, then return once bubbling has subsided and stir briefly before placing pan back on the heat.
Continue to reduce purée to a heavy syrup or thick dessert sauce consistency. This takes approximately 10 minutes. Stop reducing once your can scrape the bottom of the pan with your spoon and the purée doesn't immediately fill in the spot you scraped.
Remove purée from heat and measure out 1.5 oz of hot purée into a heat-proof proof dish. This should be all of the reduced purée if the reduced consistency is correct.
Immediately pour your hot purée over your chocolate and allow the hot liquid to begin to melt the chocolate. Stir briefly to distribute the liquid evenly and encourage melting.
To complete the melt, you will need to CAREFULLY melt fully using your microwave. Place the bowl in the microwave and melt in 15 second increments and stir between increments. Do NOT microwave more than 15 seconds without stirring, or you will burn the chocolate or create a poor texture in your finished product. You will only need to do this 2-3 times before your chocolate is fully melted. It should look fully melted, smooth and well combined and resemble somewhat of a smooth icing consistency.
Allow this mixture to cool for about 10 minutes to around 81-90°F and then add your room temp softened butter and stir well until fully incorporated.
After butter is fully incorporated, you need to allow the ganache to rest at room temp for 24 hours. Cover the ganache with plastic wrap directly on top of the surface of the ganache and seal out all air. This prevents a thick film from forming on the top of the ganache. Then cover the bowl itself with another piece of plastic wrap to prevent any additional air from reaching the ganache.