1 egg
1 cup milk
1 3/4 cups all-purpose flour
3/4 cup unsweetened cocoa powder
1 1/4 teaspoons baking powder
1 1/2 teaspoons baking soda
1 1/2 teaspoons salt
1 1/2 teaspoons ground cinnamon
1/2 teaspoon ground nutmeg
1 1/2 cups butter, softened
1 cup confectioners' sugar
1 teaspoon vanilla extract
2 cups graham crackers crumbs
1/2 cup semisweet chocolate chips
1/2 cup confectioners' sugar
1/3 cup milk
1/3 cup evaporated milk
3/4 cup white sugar
1/3 cup buttermilk
Preheat oven to 350 °F (175 degrees C). In a medium bowl, stir together