What non-dairy product can I use instead of whole milk? Thank you!

i used a mix of almond and oat milk (only bc i wanted to finish off my almond milk) and it came out perfectly

If you look through the comments on the recipe, bakers have successfully used many non-dairy milks and even water. I recently used a mix of malt powder and water to good effect.

I have made it several times- both as a cake and as muffins- with unsweetened soymilk since it has a similar viscosity and protein content. This is one of my all time favorite muffin recipes!