If you give a mouse a cookie

Juanita and I are taking Anthony to see "If you give a Mouse a Cookie" at Majik Theatre in San Antonio. I made these cookies to for this occasion. This is from Top Secret Recipes and is a version of Nabisco Oreo Cookies.

Cookie
1 18.25 package of chocolate fudge cake mix
3 Tablespoons shortening, melted
1/2 cup cake flour, measured and sifted
1 egg
3 Tablespoons water
2 Tablespoons brown paste food coloring (optional)*
Filling
3 3/4 cups powdered sugar
1/2 Tablespoon granulated sugar
1/2 teaspoon vanilla extract
1/2 cup vegetable shortening
2 Tablespoons hot water
1. Combine the cookie ingredients in a large bowl. Add the water a little at a time until the dough forms. Cover and chill for 2 hours or overnight.
2. Prehead oven to 350 degrees
3. On a lightly floured surface roll out a portion of the dough to just under 1/16 " thick. To cut, use a lid from a spice container with a 1 1/2 " diameter. Arrange the cut dough rounds on a cookie sheet that is sprayed with a non-stick spray. Bake for 10 min. Remove wafers from the oven and cool completely.
4. As the cookies bake, make the filling by combining the filling ingredients with an electric mixer.
5. When the cookies have cooled, roll a small portion (1/4 teaspoon) of the filling into a vall (just over1/4 inch in diameter) and press it between two of the cookies. Repeat with the remaining cookies.
*If you do not use the food coloring be sure to change the amount of water added to the wafer cookies from 3 Tablespoons to 1/4 cup. The food coloring gives the cookies the dark brown, almost black color. The coloring can be found with cake decorating supplies at craft stores. I just used black food coloring from the grocery store