Pumpkin Crumb Cake

We made this yummy dessert tonight.  Deliciousness!!  The kids reeallllyy enjoyed it.  Of course, some vanilla ice cream is completely mandatory!  :)

• 1 (18.25) package yellow cake mix
• 4 eggs (seperated)
• 3/4 cup butter (seperated)
• 1 (15oz) can pumpkin puree
• 1 cup white sugar (seperated)
• 1/4 cup brown sugar
• 1 1/2 tsp ground cinnamon
• 1/2 cup chopped walnuts (we didn't have any on hand, but I bet it would be good!)

1. Preheat oven to 350.  Lightly grease a 9x13 glass pan.
2. Reserve 1 cup cake mix.  In a medium sized mixing bowl, combine remaining cake mix with 1 egg and 1/2 cup melted butter.  Pat into prepared pan.
3. In medium sized bowl, stir together pumpkin puree, remaining 3 eggs, 1/2 cup white sugar, 1/4 cup brown sugar, and cinnamon.  Pour over crust.
4. In a small bowl, combine remaining cake mix, 3 TBS butter, and 1/2 cup sugar.  Crumble over pumpkin.  Top with walnuts if desired.
5. Bake at 350 for 40-45 minutes, until the top is a crispy golden brown.  Allow to cool at least 15 mins before serving.  Top with ice cream.