Make Liquid Skim Milk like a pro using our Lactose Free Skim Milk Powder and water. star Liquid Skim Milk Rated 5.0 stars by 1 users Share on Twitter Share on Facebook Share on Pinterest Share on Whatsapp Servings 1 Prep Time 5 minutes Make Liquid Skim Milk like a pro using our Lactose Free Skim Milk Powder and water. Ingredients 2 tbsp Lactose Free Skim Milk Powder 1 cup water DirectionsAdd 1 cup of water to 2 tbsp of Lactose Free Skim Milk Powder. Stir and refrigerate if desired. For a creamier taste and protein boost: Use 3 tbsp powder (12 g protein).