Step 1: Mix dry ingredients; blend pumpkin, eggs, sugar, oil, and vanilla. Bake until done.
Step 2: Let the cake cool to room temperature. Poke holes in the cake using a fork or skewer.
Step 3: Mix milk, condensed milk, and evaporated milk. Pour the mixture over the poked cake, ensuring it soaks through. Refrigerate overnight.
Step 4: Combine heavy cream, powdered sugar, cinnamon, and orange zest. Whip until soft peaks form.
Step 5: Spread whipped cream over the chilled cake, then sprinkle with cinnamon and orange zest. Enjoy!