Push down on each cardamom pod, causing it to crack.
Add pods with cinnamon sticks and water in a small pot.
Simmer over low-medium heat for 5 minutes.
Allow to cool and come to room temperature.
Scoop out pods and sticks and discard them.
Once the spiced water is cooled, preheat oven to 350℉.
Grease a 9x13 rectangular cake pan. Set aside.
Add cake mix to a large bowl.
To that, add ground cinnamon and nutmeg.
Mix until incorporated.
Add eggs, oil, pumpkin puree, oil and spiced water.
Using a stand or hand mixer, mix for 1-2 minutes.
Pour into greased cake pan.
Bake for 18-23 minutes, or until a toothpick comes out clean.
For the frosting:
Whip all ingredients until combined.
Set aside in refrigerator until ready to use.
Frost the cake once it is cooled.
The calories shown are based on the cake being cut into 15 pieces, with 1 serving being 1 slice of cake. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information.**