Melt 1 cup chocolate chips, and 1/2 cup shortening in a double boiler; cool. Stir in flour, sugar, eggs, and baking powder with fork. Spread crust evenly onto a well greased pizza pan.
Bake at 375 degrees F (190 degrees C) for 15 minutes. Cool.
Combine 3/4 cup chocolate chips, 2 tablespoons shortening, and water. Melt in a doubler boiler. Stir until smooth. Spread glaze evenly over cooled chocolate crust. Decorate as desired with candies.
