If I was a newbie lotioncrafter and I wanted to make this butter without knowing the recipe, I would first substitute the candellia wax with emulsifying wax to insure a good emulsion, as candellia wax is not a good emulsifier.

I would melt this with equal proportions of the stearic acid and the other oils and butters in very small amounts (1 oz each) in a double boiler until melted. When melted completely, I'd place the oils in a stand mixer and drizzle in an equal amount of hot water (6 oz in this case) while mixing on slow speed (or use a stick blender in a tall container - but this won't give the mixture a true whipped texture). As the mixture thickened, I'd speed up the mixer, incrementally, as fast as it would go without splashing. I'd do this until, as the mixture becomes thick, I'd be whipping it like whipped cream. When cool, I'd add about 1-1/2 teaspoons of essential oil while whipping and then put it into jars to stiffen up a bit. This would result in 12 oz of ingredients whipped up to about 16 oz of whipped butter.

 If you make small amounts and take copious notes, you can adjust the proportions of oils and waters as needed in subsequent batches. This way, you can custom-tailor the cream to your tastes.

 Otherwise, I'd use the following recipe, which I wrote for you:

 If you follow the same procedures as above, this will result in about 12 oz of whipped butter.

 However, I must tell you - I tested both recipes and I BY FAR prefer the first recipe using equal proportions of each. It works beautifully. The second recipe is more like a cream than a whipped butter. You might also try substituting coconut oil for the cocoa butter in the first recipe. It gives a wonderful silkiness to the butter.

 Hope this helps.