Thanks for giving the recipe a try! I’m glad you enjoyed the flavor! The pumpkin layer should set up nicely with the measurements provided, so I’m sorry to hear yours turned out runny. Making sure the pudding is thoroughly mixed and allowing plenty of time for the dessert to chill can help it reach the right consistency. I appreciate you taking the time to share your experience and hope you’ll give it another try!

Store in the refrigerator for up to 3 days. This does not freeze well.

Yes, it can still work. Since your pudding mix is a little smaller than the 4 ounce box the recipe calls for, just reduce the half and half slightly. Using about 1 cup to 1 1/8 cups will help the pudding thicken the same way. Just make sure the pudding is thick before you layer it in the pan. If it’s too thin it won’t hold up in the dessert. Everything else stays the same, and it should set up beautifully.

No, I don’t recommend freezing this recipe.

I’d need to know more to determine why it didn’t set up properly. It’s a soft, layered dessert so it’s not a stiff layer, but I wouldn’t call it mush. It definitely needs to be refrigerated for at least 4 hours, or overnight.