Lavender Honey Bastille Soap

Olive oil has been used both inside and outside the body for thousands of years, especially in Mediterranean cultures where the olive trees flourish. It is loaded with antioxidants, polyphenols and other components that nourish, condition and soften the skin when applied externally. It also has a long history of being used in soapmaking, and the olive oil soaps made in the Castile region of Spain are legendary.

Castile soaps made with 100% olive oil are mild and gentle on the skin. They have many of the same moisturizing and conditioning qualities of the olive oil they are made from. However they are somewhat challenging for the home soapmaker to produce, requiring more mixing time with the lye, and lots more curing time before they are ready to use. While most cold process soaps are cured and ready to use four to six weeks after they are made, 100% olive oil soaps are best after six months to a year of curing time. And while 100% olive oil soaps are great for the skin, they are also shy on their lathering properties, and the lather can sometimes leave a slimy feel on the skin.

Lavender Honey Bastille Soap

Lavender Honey Bastille Soap

All the soaps we make at Happy Acres have some olive oil in them. Our basic soap recipes usually have between 30-40% olive oil in them, along with other oils and butters. We have made several 100% olive oil soaps too, but so far haven’t been real happy with the results. Earlier this year I revisited the idea of making a soap with a high percentage of olive oil. And after some research, I found out about Bastille soaps which have a high percentage of olive oil along with a few other carefully selected base oils. And so the recipe for Lavender Honey Bastille Soap was born!

This soap contains 70% olive oil, along with a small amount of coconut and castor oils plus some shea butter. The coconut oil helps to increase the lather and harden the soap, while the castor adds moisturizing qualities and makes for a creamy lather. Shea butter also hardens the bar plus it’s great for the skin.

extra virgin olive oil

extra virgin olive oil

The soap also has honey in it, which helps increase the lather. I like to add some lavender essential oil, but you can use your own favorite EO or leave it unscented. The honey is added to the lye water, which typically turns a reddish brown color when the lye reacts to the sugars in the honey. When the lye water is mixed in with the oils, the result is usually a yellow-gold color. It would be nice if the soap turned out to be this color, but it lightens up to a shade of tan as the soap cures.

mixing the soap with immersion blender

mixing the soap with immersion blender

We poured this soap into one of our homemade PVC pipe molds, after lining it with freezer paper to keep the soap from sticking to the mold. We let the mold sit for for four days to finish saponification.

pouring soap into mold

pouring soap into mold

Then we pulled the soap from the mold, removed the freezer paper, and cut it into bars.

cutting Lavendar Honey Bastille Soap into bars

cutting Lavendar Honey Bastille Soap into bars

After cutting, we laid out the soap so it can cure. It is generally safe to use after a couple of weeks, but the longer it cures, the harder the bars will be.

bastille soap curing

bastille soap curing

Please refer to the cold process instructions here if you are new to making soap. Always take the proper safety precautions (we wear rubber gloves and goggles when mixing and making the soap).

Lavender & Honey Bastille Soap

Lavender Honey Bastille Soap Print This Recipe Print This Recipe
(adapted from a Candle & Soap recipe)

Olive Oil – 315 grams (70%)

Coconut Oil – 67.5 grams (15%)

Shea Butter – 45 grams (10%)

Castor Oil – 22.5 grams (5%)

Distilled Water – 171 grams

Lye – 59 grams  (7% superfat)

1 Tbsp of honey, warmed and added to a small amount of the distilled water, then added to the lye water once the lye water has cooled so both liquids are about the same temperature.

Added at light trace:

4 tsp lavender essential oil

This recipe is for a 1 lb/450g batch (oil weight) of soap. We ran this recipe through a soap/lye calculator, and you should always run your recipes too before making them. This one at SoapCalc is our favorite.

NOTE: This soap is superfatted/discounted at 7%

For more recipes and soap information, check out my wife’s Soap Recipe page. I’ll be back soon with more adventures. Until then, Happy Growing (and soaping) from Happy Acres!

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7 Responses to Lavender Honey Bastille Soap

  1. Daphne says:

    I always wondered what pure castille soap was.

  2. Carla says:

    I always love reading about your soap making adventures- as I’ve said before, I love your “round” bars. I have some pvc pipe to do this sometime, but the soap I make always lasts me forever. I’m trying to not get carried away and make too much and not use it.
    Soap making reminds me of making Biscotti= I want them ALL!

  3. Margaret says:

    Your soaps are just beautiful. I have always wanted to try my hand at homemade soap but with so many things on my plate, finding the time is the greatest challenge.

  4. Evelyn says:

    Found your site from a google search. Enjoying your post about coffee infused oil and this one about the lavender honey bastille soap. Do you do YouTube videos? I know of people that use an empty Pringles can as a soap mold. Peel off like tube biscuits and cut, then allow to cure. I make soap not for selling but for personal use. I found adding a small amount of stearic acid will make your soap trace a bit faster and help make it a harder, longer lasting batch. I bought my stearic acid from Amazon. Thanks for posting your tips and ideas. I’m going to come back often to see what else you have of interest.

  5. Pooja says:

    Just loved the recipe. Can I try making this same soap using the hot process? If yes, How about adding a bit of Argan oil after the soap is cooked in the crockpot? Also can I use milk to add lye instead of distilled water?


    • Dave says:

      Hi Pooja, so glad you liked the soap! We’ve never done hot process soap, so I’m afraid I can’t help you on that regard. Using milk instead of water should work fine.

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