Here are the steps to apply cacao butter to hair:
1. Start by melting a small amount of cacao butter in a double boiler, placing it in a heat-safe bowl, and heating it in the microwave for a few seconds.
2. Once melted, allow the cacao butter to cool slightly so that it's warm but not too hot to apply to the hair.
3. Add the melted cacao butter to your hair, starting at the roots and working your way down to the ends. Use your fingers or a wide tooth comb to distribute the cacao butter evenly throughout your hair.
4. Leave the cacao butter on your hair for 20-30 minutes to allow it to penetrate and moisturise your hair.
5. After the allotted time, rinse the cacao butter out of your hair with warm water and follow with a natural shampoo and conditioner.
6. Style your hair as desired, or use the cacao butter as a leave-in conditioner by applying a small amount to the ends of your hair.
Note that a small quantity of cacao butter goes a long way, so start with a minimal amount and increase it as needed (according to the dryness and length of hair).