Pour the neutral oil in a pan and heat it up till the temperature is 50 °C.
Then add the coffee beans and the empty vanilla pod. Turn down the heat to a minimum and let it infuse for 2 hours.
After that turn off the heat and let it infuse for 3 hours.
Once you’re happy with the flavor pass the oil through a fine sieve and let it drip for at least 30 minutes so you don’t waste a single drop. Keep it in your fridge for later.