Add 2 Tbsp. milk powder for every 1 cup liquid milk, whisking it into the cold milk to dissolve; then heat, cool, and add the yogurt culture. ...

The powdered oat milk product has 'good all-round functionality' as an alternative to carton oat milk, we were told. GettyImages/alvarez (alvarez/Getty Images) As to whether Overherd’s powdered oat ...