Slowly and carefully add the lye to the water for all three batches, and gently stir until the lye has fully dissolved and the liquid is clear. Set aside to cool. You will have three containers of lye, with the amounts below. Once cooled, add sodium lactate to the lye water for a bar of soap that releases faster from the mold.
-Batch One Lye Solution: 13.2 oz. Distilled Water + 5.7 oz. Sodium Hydroxide Lye + 2.5 tsp. Sodium Lactate (optional)
-Batch Two Lye Solution: 13.2 oz. Distilled Water + 5.7 oz. Sodium Hydroxide Lye + 2.5 tsp. Sodium Lactate (optional)
-Batch Three Lye Solution: 6.6 oz. Distilled Water + 2.8 oz. Sodium Hydroxide Lye + 1 tsp. Sodium Lactate (optional)
Fully melt the entire bag of Basic Quick Mix until there is no cloudiness. Give it a good shake to mix all the oils, and measure out 40 ounces into one soaping bowl, 40 ounces into a second and 20 ounces into a third. Set aside the bowls of oil for batch two and three. Once the lye water and the oils for batch one have cooled to 130 degrees or below (and are ideally within 10 degrees of each other), add the batch one lye water to the oils and stick blend until thin trace.
Once you have a thin trace, add 1 Tbs. dispersed titanium dioxide into the entire batch. Split off three containers of 200 mL. Add the dispersed colorants in the following amounts below, and use a whisk to fully incorporate the colorants.
-Container A (200 mL): 1 tsp. dispersed Buttercup Mica
-Container B (200 mL): 1/2 tsp. dispersed Slushy Blue Mica
-Container C (200 mL): 1/2 tsp. Magenta Mica
Add the measured Apple Sage Fragrance Oil into each container proportionally, it’s okay to eyeball it. Use a whisk to mix in the fragrance oil. If the batter is still extremely thin, give the white soap a short burst or two with the stick blender to thicken slightly. The soap should be a thin-medium trace.
Create an In-The-Pot Swirl by pouring the pink, yellow and blue soap into various areas of the white bowl of soap. Pour from various heights above the mold. This helps the colors break through the white, and reach the bottom of the bowl as well as the top. Once the colors have all been poured, use a chopstick or dowel to swirl the soap in a circular motion three to four times.
Pour the soap into the mold. The soap will not fill up the mold all the way; fill up to the middle-ish of the horse nose. Give the mold a tap on the counter to help release air bubbles.
Now, it’s time to wait for the soap to firm and harden. The soap should be firm enough to hold its shape, but thin enough for the soap to be scraped out smoothly. It’s a little hard to know when that “perfect” texture has been achieved. I tested every 3-5 minutes or so by scraping a small amount of the very top of the soap with a spoon. It is better to start scraping out the extra soap sooner rather than later. If the soap is not thick enough to hold any shape, let it harden for a few more minutes. But, if the soap is too thick, there is no going back. For this recipe, I found waiting about 8 minutes was the perfect amount of time for the first layer. Your soap may require more or less time, so keep an eye on it.
Once the soap is an appropriate texture, insert the cardboard shape with the horse nose into one edge of the soap, and begin pulling it through the mold. Place the extra soap into a separate mold if you’d like to save it. The first few passes with the cardboard shaper will be a little awkward and messy, but that’s okay! This process will begin to form the top of the horse’s outline including the mane, ears, and top of the nose.
Continue sliding the shaper through the mold. I recommend sliding it in both directions; it will help pull away every little bit of soap for the cleanest image. As you can see below, the shape of the horse is starting to come together! Once you pull the scraper away and it’s no longer pulling soap out, you know it’s done. Allow this layer to sit and harden for 10-15 minutes. The bottom layer should be firm enough to support a thin layer of soap on top without it squishing the small details of the mane, and general shape of the nose.