Homemade Yogurt in the Crock Pot

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Yes, I know Crock Pot is a brand of slow cooker, but I’m an old dog and I grumble when I’m forced to learn new tricks.  Add that to being raised in Texas where all slow cookers are referred to crock pots and it’s doubly embedded in my brain.  The only crock pot (there I go again)  in my house that I don’t call a crock pot is the Ninja.  I like the idea of having a ninja as a sous chef.  I’ll bet they are proficient with the knife.  I also like being able to say things like, “The ninja is cooking dinner tonight”.  And I especially love yelling, “Don’t let the ninja burn down the house!” as I walk out the door.  Confusing my family is one of my gifts.

To say I love my crock pots is an understatement.  I have a very close, personal relationship with my crock pots that most people don’t understand and, really, neither do I.

Crock pot is a member of the family.

Crock pot is swell.

Homemade yogurt is the most recent culinary delight that crock pot concocted in my kitchen.

Now, I have made yogurt before using various methods.  The yogurt maker I had, left me with a very thin yogurt that just wasn’t my thing.  When making it using a Thermos, I was limited with the small capacity.  With the crock pot, I can make a huge batch!  This is important because we eat massive quantities of yogurt around here.

This recipe is a result of tweaking a basic recipe until I reached the desired flavor and consistency.

You will need:

  • 1/2 gallon of  whole milk (2% will work, but result in a slightly thinner yogurt)
  • 2 Tbsp. Greek yogurt (if using a thinner yogurt for a starter culture, double the amount)
  • 1/2 c. powered milk
  • a crock pot (aka slow cooker)
  • ice chest large enough to house the crock pot wrapped in towels
  • towels (to insulate the crock pot)


Pour the milk into the crock pot.  Cover and turn to high heat.

Now go on about your business for the next two hours.  That’s about how long it will take for the milk to reach 180 degrees (Fahrenheit).  At this point, remove the lid and turn off the heat.

Let the milk cool to 115 degrees.  Stir the milk periodically and test with a thermometer after stirring.  As the milk cools, it will form a skin on the surface.  Remove the milk skin and try not to gag as the words “milk skin” rattle around your brain.

When the milk reaches 115 degrees, whisk in the powdered milk making sure to not have any lumps.  I run the powdered milk through a mesh strainer to get rid of any lumps before adding to the liquid milk.  It works. Do it.

Stir in the yogurt and mix completely.  Only 2-4 tablespoons of yogurt is needed as a starter.  The lovely bacteria need plenty of room to go forth and multiply.  Resist the urge to add more yogurt than necessary.  It will not result in a thicker yogurt.

Place a large towel in the bottom of your cooler.  Put the whole crock pot into the cooler and place another towel or two on top.  Then bring up the bottom towel to wrap the crock pot entirely and shut the cooler lid.


Now, here’s the hard part.

Walk away.

Just walk away.

Leave the crock pot in the insulated cooler for 10-12 hours.  No peeking!

After 10 hours, check on the yogurt.  If it’s the consistency you like, then you can move it into separate containers and place in the fridge.

I usually begin the yogurt making process early in the morning so that the yogurt is ready to place in the refrigerator, crock and all, right before I go to bed.  In the morning, I transfer the yogurt into four 16 oz. jars.

I leave a couple of the jars plain so they are versatile.  We use yogurt in smoothies, in place of sour cream and for baking.

The remaining yogurt is made into creamy vanilla yogurt.  You can use any sweetener you like, but I like the “no added sugar” approach so I use 12-15 drops of Vanilla Stevia per 16 ounces of yogurt.

gluten-free granola with homemade yogurt
gluten-free granola with homemade yogurt

Top a bowl of vanilla yogurt with homemade gluten-free crunchy pecan and coconut granola and you will be happy you did.

Tip:  Don’t eat all the yogurt!  Save 2-4 tablespoons to use as a starter culture for the next batch.

Do your gut a favor and give probiotics a chance!

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goat’s milk and honey soap in the crock pot

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When I tell people I make my own soap, I’m sure many of them think it’s a waste of time.  After all, soap is readily available in just about every grocery, drug, convenience and dollar store and it’s inexpensive.  So why do I make my own?  I’m glad you asked.

Your skin is your largest organ.  Some adults carry around 8 pounds or about 22 square feet of it.  While it does a good job at regulating temperatures and keeping our insides on the inside, it’s porous, and that means it is penetrable.  Some of the  stuff we put on the surface of our skin can make it’s way into our bodies.  If you are not convinced, think about the medication patch delivery system.

Because my girls suffer from food allergies and psoriasis, we spend more time than I would like traveling to and fro and sitting in the office of our allergist.  On his advice, we have been removing fragrances from the cleaning, laundry and toiletry supplies we use.  We have completely omitted dryer sheets (replaced with dryer balls) and said sayonara to store-bought liquid fabric softener in favor of homemade fabric softener and cleaning concentrate.  Our cleaning supplies are baking soda, vinegar and a few essential oils like tea tree and eucalyptus.  When extra cleaning power is needed, I break out the big guns like borax and washing soda.

Now, back to why I make my own soap.  I don’t know what is in the mass-produced soap.  The “fragrance” on the list of ingredients doesn’t have to be disclosed.  It can be a dangerous cocktail of chemicals that have been linked to cancer and  phthalates that can lead to asthma and allergies.  Not in my bath water.  No thanks.

If you are a homeschooling family, like we are, a lesson in soap-making is a great way to connect chemistry and real life.  Do a unit study of organic chemistry and make something useful in the process.  Embrace your inner geek!  We all have one!

There are other goat’s milk soaps on the market that are safe and lovely, but at 5-6 dollars a bar, it’s not doable for my family of six.

So that’s why I make my own soap.  I get to design the soap with the cleansing, lathering and moisturizing properties I want.  Fragrance and color can be added by using essential oils and natural pigments.  Although, my favorite unscented “scent” comes naturally from goat’s milk and honey.

Here’s how it came to be.

A few years ago, I made my very first batch of cold-process soap.   It was unscented and made with goat’s milk. It was mild and even though it did not contain any added fragrance, it smelled heavenly. There is something about the scent of goat’s milk when it “cooks” in the soap that I find irresistible. If you don’t have any idea what I mean, then you need this soap in your life!

Today, because I needed mild soap and didn’t want to wait, I made that same goat’s milk soap by the hot process method. This is the first time I have used this method and I have to say, I’m a convert. You see, with the cold process method the bars require a curing period to make sure that the oils are completely saponified and the lye is no longer present. The curing period can last for several weeks and is difficult if you want it now!  With the hot process method, the lye “cooks” away in the crock pot (yes, you can make soap in the crock pot!) and the soap is ready to use in as little as 12 hours.

I want my soap now! My winter-ravaged skin needs it. I’ll bet many of you feel the same way, so I’ll tell you how I did it!

You will need:

  • a kitchen scale that measures ounces or grams
  • safety goggles
  • gloves
  • face mask
  • spoon for stirring
  • glass container for mixing milk and lye
  • crock pot
  • olive oil (22.4 ounces or 635.029 grams)
  • coconut oil (8.96 ounces or 254.012 grams)
  • castor oil (0.64 ounces or 18.144 grams)
  • goat’s milk (12.16 ounces or 344.73 grams)
  • honey (2 Tbsp)
  • lye (4.521 ounces or 128.158 grams)
  • pH strips (or phenolphthalein )

You also need 2 Pringles cans to use as molds (my kids thought I was the bees knees for buying Pringles) or a soap mold that accommodates 2 pounds of soap.

Warning:  Lye is a caustic substance.  Failure to follow safety precautions and to wear proper safety gear can result in injury.

This recipe is for two pounds of soap. It fills two Pringles cans about 3/4 of the way. It’s important to note that Pringles can may only be used during the hot-process soap method because the soap being put into the cans is already soap.  Do not use Pringles cans with cold-process soap as it still contains lye until it is cured.

Safety first: If you make any changes to the oils, run your oils of choice through a soap calculator. SoapCalc.net is the one I used.

When using goat’s milk or any other milk in soap making, it must be ice cold to keep the sugars from caramelizing too much and creating an off-putting scent.  On the morning I make soap, I measure out the amount of milk needed for the recipe into a container and place it in the freezer.  Within a couple of hours, the milk is slushy and ready for the lye.

weighed oils into crock pot
weighed oils into crock pot

Weigh each oil and place in the crock pot on low.  While the oils are melting, measure out your lye (I used a disposable paper cup).  Be sure to wear your safety goggles, mask and gloves when handling lye.

Turn off the crock pot when the oils have melted.

Transfer your slushy goat’s milk into a large glass measuring cup, or pitcher.  Wearing all you safety gear (long sleeves are a good idea here, too) sprinkle the lye slowly into the milk and stir gently until completely dissolved.  I add the lye to the liquid outside to avoid breathing in any fumes.  I recommend doing this.  Always.

Safety note:  (This post is full of them!) Never pour your liquids into the lye.  It can make a very dangerous volcano-like situation.

Once the lye is fully dissolved in the milk, slowly pour into the oils.  Stir gently with a spoon to mix, then break out the stick blender!  I wouldn’t think of making soap without one.  I’m pretty sure by the time I stirred the oil/milk/lye mixture to trace, my arms would fall off.  I’m pretty attached to my arms, so I use a stick blender.  You should, too.


With the stick blender, immersion blender or whatever you want to call it (call it Hank, if you want) blend until the mixture looks like a soft-set pudding.  This is called “trace” because your blender (or Hank) will leave a trace of a trail when pulled through the mixture.  This stage usually takes 8-12 minutes, depending on the oils being used.


When trace happens, turn on the crock pot to low and cover with the lid.  I offset the lid slightly so the heat stays in, but the lid does cause condensation.


As the soap cooks, it will bubble along the edges.  Stir with a spoon occasionally to keep the mixture cooking evenly.  While cooking, the soap mixture looks like applesauce.  Resist the temptation to taste it.  When the soap is ready, it will resemble waxy mashed potatoes.  At this point, use a pH test strip to make sure the lye is cooked out.  Remove a small blob of soap mixture and test it with your pH strips or phenolphthalein, whichever one you’re using.  Your goal is a pH of 8.2-10.  Some soap makers use the zap test.  If lye is still present, the soap will zap your tongue like a 9-volt battery.  When the soap is fully cooked, it just tastes like soap.  Using pH strips or phenolphthalein is more accurate and the recommended way to go.  Do that.

This recipe took about an hour and 15 minutes to cook.


When you have determined that your soap is fully cooked, turn off the crock pot and add the honey.


Stir until the honey is fully incorporated.  If using any other additives, such as coloring or essential oils, add them at this point.


Spoon the mixture into the Pringles cans.  (You do not need to line them with parchment or freezer paper.  Beautiful, isn’t it?)  Work quickly and tap the cans on the counter occasionally to avoid air bubbles.  Fill the cans no more than 3/4 of the way.  You need a little space to cut and tear the can away when the soap has hardened.


The soap needs at least 12 hours to cool and harden in the molds.  When ready to unmold, take a sharp knife and cut straight down and then tear the can off the rest of the way.  Slice into bars.

Congratulations!  You made soap!


I usually let my bars sit on a wire rack to continue to harden after I cut them into bars.  By allowing them to dry out, they last longer in the shower.

This recipe yields 12-14 bars (3/4″-1″ in thickness).

As soon as I force more Pringles on my kids and the youth group (or I make my own wooden soap mold), I’ll be making more soap in the crock pot.  I’m see  Lime-Basil or Lavender-Mint in my near future!

What about you?  I’m curious.  What is your favorite soap scent?

(I am also curious how many people have the urge to watch “Fight Club” after making soap.  Is it just me?  Please tell me I’m not alone.)

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