Is Oat milk good in lattes?

It is so good! Oat milk is creamy and thick, which makes it the perfect texture and the reason I drink oat milk lattes every morning at home.

Can I substitute the oat milk?

If you prefer regular dairy milk, I would use a higher fat content like whole milk for the creamy texture. Almond milk is thin and creates a really watery version, so it isn't my first choice.

Do I have to freeze the coffee cubes overnight?

I find this step really helps to not create a watered down latte. However, if you don't have the time, mix 1 cup of ice with 2 cups of room temp or chilled coffee. Add more ice if desired.