Put the cut potatoes in a large saucepan and cover with water.
Bring to a boil; continue to cook for 15 minutes, or until fork tender.
Place the cooked potatoes in a mixing bowl and mash with a potato masher.
Add in the butter and mix until butter is melted.
Stir in the orange zest, sugar, and cinnamon; mix until completely incorporated.
Layer about two tablespoons of crushed cookies on the bottom of each trifle; top with sweet potato puree; repeat by layering another tablespoon or two of the crushed cookies and top with the puree.
Add whipped topping, if desired.
Calories: 257 kcal | Carbohydrates: 43 g | Protein: 2 g | Fat: 8 g | Saturated Fat: 4 g | Cholesterol: 15 mg | Sodium: 247 mg | Potassium: 327 mg | Fiber: 2 g | Sugar: 17 g | Vitamin A: 9395 IU | Vitamin C: 1.6 mg | Calcium: 60 mg | Iron: 2.3 mg | Net Carbs: 41 g
Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.