You had me at RumChata. This recipes is courtesy of RumChata.com, with a few very small tweaks.
2 large eggs
1/2 cup brown sugar
1 15 oz can pumpkin (NOT filling)
1 14 oz can sweetened condensed milk
3/4 tsp ground cinnamon
1/2 tsp ground ginger
1/2 tsp ground nutmeg
1/2 tsp kosher salt
1/4 tsp cloves
Whisk eggs is mixing bowl. Add remaining ingredients and whisk until combined. Pour into prepared crust. Bake for 15 minutes at 425. Reduce oven to 350, and bake for additional 35 to 40 minutes.