Dry soy beans in a bowl next to a glass of soy milk

Kid Approved Homemade Soy milk Recipe

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A cow’s milk allergy is one of the most common food-based allergens in children, affecting 2 percent of youngsters under the age of 4. Finding an alternate source of protein and calcium is critical for optimal development. Soy milk may be a viable alternative for young children; however, commercial soy milk may not have adequate fat or calories as a milk replacement. Homemade versions of soy milk can mix in additional ingredients to provide children with the fat and calories they need for optimal development. The Kid Approved Soy Milk recipe was developed to work as a milk substitute for young children.

Disclaimer: The content of this post is meant for ideas and inspiration and not to replace medical advise. Please consult with your pediatrician and a dietician to make sure that your child’s dietary needs are being met. 


I make my soy milk base in the Soyajoy G4. I bought an earlier version of the Soyajoy in 2010 to make milk for one of my children who had a milk allergy. He outgrew his milk allergy over a 2-3 year period and I stopped making soy milk. I sold my original soyajoy at a yard sale. Several years later I had another child with a milk allergy. Once I weaned Sally (psuedonym), I needed to find a milk replacement for her. I went back to the Soyajoy brand and have been very happy with this machine’s performance. Making soy milk is as simple as pushing a button. The machine comes with a measuring cup, a strainer, and a container.

I am unable to buy soybeans locally, so I have to buy mine off of Amazon. I buy Laura soybeans. They come in a 5-pound or 13-pound bag. I buy the 5-pound as I cannot get free shipping to Alaska with the 13-pound bag.

If Signature Soy will provide free shipping to your area, the 13-pound bag is the better deal.


Soy Milk Recipe:

Step 1: Measure out the dry soy beans using the cup included with the Soyajoy milk maker. 

Step 2: Soak the soy beans in water 6 hours or overnight.

Step 3: Fill the Soyajoy with water to the fill line. There are actually 2 fill lines and you are supposed to fill the water somewhere between the two lines. 

Step 4: Put the lit on and push the “soaked beans” button on the far left. The milk maker will then proceed to do its job and beep when the soy milk is complete.

Step 5: Strain the soy milk using the included strainer and pitcher. The pulp, otherwise known as okara, can either be thrown out or used in breads or other recipes.

Step 6: Let the soy milk cool to luke warm, then move to a 2 qt. storage container and refrigerate. I bought Sterlite 2 qt pitchers and they work perfectly for storing the homemade milk. I bought two so I always have a clean one ready for a new batch of soy milk.

Mixing the soy milk base with additional ingredients:

I make an 8 oz. serving at a time in a chid’s cup, but this Tupperware shaker would also work well.

In addition to the completed soy milk, you will need grapeseed oil, pure maple syrup, and calcium powder. I buy my grapeseed oil and pure maple syrup at Walmart, but you could also buy them off of Amazon if they are unavailable at your preferred grocery store. The calcium powder I use I did buy from Amazon. The bottle I own does say, “For adults only,” but I was unable to find this same warning on the linked calcium powder. My dietician did recommend using calcium powder in our homemade soy milk, but I would urge you to consult with your pediatrician or dietician for their recommended calcium sources and suggested amounts.   

For an 8 oz. serving of milk, mix:
  • 1 oz. (or 2 tablespoons) of grapeseed oil
  • 1 oz. (or 2 tablespoons) of pure maple syrup
  • 6 oz.(or 3/4 cup) of homemade soy milk
  • 1/16 to 1/8 teaspoon of calcium powder (optional)

Estimated Calorie Content

When I weaned Sally and started giving her homemade soy milk, she was not gaining weight as she should. I have worked with her pediatrician and a dietician on helping her gain weight. We considered and tried Pediasmart, but were unable to get her to drink it. We even tried gradually adding it to her soy milk, but she began refusing that as well. The Kid Approved Soy Milk Recipe was developed to provide calories comparable to Pediasmart.

Soy milk contains about 100 calories (may vary based on brand and processing methods) for an 8 oz. serving. Whole cow’s milk contains about 103 calories. Pediasmart contains 240 calories. The Kid Approved Soy Milk Recipe contains approximately 420 calories (3/4 c soy =75 calories + 1 oz. grapeseed oil =240 calories + 1 oz. maple syrup = 105 calories).

Sally is gaining the right amount of weight now that she is drinking the homemade Kid Approved Soy Milk. The calorie content can be adjusted for individual dietary needs by reducing the amount of grapeseed oil and maple syrup per cup.

Calcium and other nutrients can be supplemented with gummy vitamins. My children like these:

In summary, many children have milk allergies and need to find another source of protein and calcium. Commercially produced soy milk may not have sufficient calories to meet a growing child’s needs. The Kid Approved Homemade Soy Milk recipe adds fat and sweeter to a plain soy milk base to increase the calorie content.

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