Preheat oven to 350°. In a large bowl, combine the dry ingredients. Add milk, pumpkin, butter and vanilla; mix until blended. Grease a casserole dish or 9x13" baking pan and pour in the batter, spreading it evenly.
2 1/2 Cups Flour, 1 Cup Sugar, 1/2 Cup Dark Brown Sugar, 4 teaspoons Baking Soda, 4 teaspoons Cinnamon, 2 teaspoons Ground Cardamom, 1 1/2 teaspoons Nutmeg, 1 teaspoon Ground Ginger, 1/4 teaspoon Ground Cloves, 1/2 teaspoon Salt, 1 Cup Evaporated Milk, 1 Cup Canned Pumpkin, 1/2 Cup Butter, 2 teaspoons Vanilla
Make the Topping
In a small bowl, mix together the brown sugars, cornstarch, and cinnamon; sprinkle over batter.
1/2 Cup Light Brown Sugar, 1/2 Cup Dark Brown Sugar, 1 Tablespoon Cornstarch, 1 teaspoon Cinnamon
In a glass measuring cup, boil the water in the microwave. Whisk in the heavy cream and melted butter. Pour the hot mixture over the top but do not stir!!!
1 Cup Heavy Cream, 2 Tablespoons Butter, 1 Cup Boiling Water
Bake until a toothpick inserted in center comes out clean and liquid is bubbling around the edges, about 30-40 minutes. The middle will still jiggle. Cool about 15 minutes in pan and then serve with ice cream or whipped cream!
Notes
Want to really up your pumpkin game? Try browning the butter in the cake!