Soy milk powder
Another great non-dairy substitute for milk powder is soy milk powder. Soy milk powder has a lengthy shelf life, similar to powdered milk. In terms of nutrients, it is more comparable to powdered milk than other non-dairy options. Despite brand differences in nutrition information, 1/4 cup (19 grams) of soy milk powder has about 90 calories, 3.5 grams of fat, 8 grams of protein, 6 grams of carbohydrates, and 4% of the daily value (DV) for calcium.
In almost any recipe, including those for baked products, soy milk powder can be substituted for milk powder at a ratio of 1 to 1. Additionally, it's a practical method to improve the protein content of smoothies and homemade granola bars. Soy milk powder is sometimes sold at specialized health food stores, although ordering it online is usually the most convenient option.