Turn the heat to medium-low, and use a heatproof spatula to scrape the bottom of the pot, forming a pattern across the entire surface. Using a thermometer or IR laser, keep stirring the curd until it hits 170°F | 77°C, when the egg will finish cooking, thickening the curd, and leaving a streak behind the spatula as you scrape the bottom of the pot. Remove from heat and immediately add the coconut oil, using the temperature difference to cool the curd slightly, preventing it from curdling. Mix in the coconut oil well and transfer to a pint-size canning jar.