Place a plastic slow cooker liner inside and spray it with cooking spray.
In a medium bowl, mix all of the topping ingredients above. Set aside.
In a large bowl, add all of the cake ingredients. Stir until well blended then pour into the slow cooker.
Place a clean dish towel over the cooker then add the lid. This will absorb the excess moisture.
Cook on high for 1 hour.
Remove the slow cooker liner and rotate 180 degrees.
Put back in slow cooker.
Sprinkle topping over cake.
Put dish towel and cover back on slow cooker.
Cook on high for 30 minutes to an hour or until a toothpick inserted in the center comes out clean.
Transfer liner to a cooling rack. Let stand 10 minutes then lift plastic liner with cake inside. Put on a cooling rack and let cool completely then remove liner.
In a small bowl, add glaze ingredients and stir until smooth.
Drizzle over cake and serve!