The phrase "excellent substitute" means a very good replacement for something else.
Sentences with «excellent substitute»
Both contain the natural molasses that is part of the sugar cane and make excellent substitutes for table sugar and brown sugar. (blog.realfood-realhealth.com)
A friend has discovered that she can not eat dairy, and coconut milk is a really excellent substitute for making ice cream. (seasonalandsavory.com)
I found two different gold plated flatware patterns that would make excellent substitutes. (christmastablescapedecor.com)