Mix cake mix with water, oil and eggs according to package directions.
Pour into greased mini-muffin tins.
Bake 10 to 15 minutes in preheated 350-degree oven or until lightly browned.
Mix orange juice and confectioner's sugar until smooth.
Add orange zest.
Dip muffins while they are still warm in the glaze, covering completely.
Cool on rack.