Step One: Cut your soap base into cubes. I used 10 oz of soap for 5-6 bars.
Step Two: Zest your grapefruit and have your poppy seeds and oils handy. Step Three: Melt the soap base in the microwave (in a plastic bowl) or double boil it on the stove top. I used a wooden coffee stirrer to stir as I went. It’s really important not to burn the soap while melting, so I microwaved in 30-second increments.
Step Four: Once your soap base is entirely melted, pour into a measuring cup. Add your oils, grapefruit zest, and poppy seeds. Give a quick couple of stirs to evenly disperse.
Step Five: Pour the soap into the silicone mold and let harden. I transferred mine to a glass measuring cup with a pour spout for easier pouring. Mine took about 2–3 hours to harden completely, but I let it sit in the molds for longer just to be sure!
Step Six: Once your soap has hardened, pop the bars out of the molds and wrap up to gift to all of your friends! This is my favorite part by far!