#### **Step 1: Prepare the Crust**
Preheat oven to **375°F (190°C)**.
Roll out the pie dough and press it into a **9-inch pie dish**. Trim and crimp the edges as desired.
Line with parchment paper and fill with pie weights or dried beans. **Blind bake** for **10 minutes**, then remove the weights and bake for **5 more minutes** until lightly golden.
#### **Step 2: Cook the Cranberries**
In a saucepan over **medium heat**, combine **cranberries, sugar, orange juice, and orange zest**.
Cook for **5-7 minutes**, stirring occasionally, until the cranberries soften and start to break down. Remove from heat and let cool slightly.
#### **Step 3: Make the Custard Filling**
In a mixing bowl, whisk together **eggs, sugar, heavy cream, vanilla, salt, and cinnamon** until smooth.
#### **Step 4: Assemble the Pie**
Spread the cooked cranberry mixture evenly over the bottom of the **par-baked crust**.
Slowly pour the custard filling over the cranberries, ensuring an even layer.
#### **Step 5: Bake the Pie**
Reduce oven temperature to **350°F (175°C)** and bake for **35-40 minutes**, or until the custard is set and the center jiggles slightly when shaken.
Remove from oven and let cool for at least **2 hours** before serving.
#### **Step 6: Serve & Enjoy**
Garnish with **whipped cream** or a dusting of **powdered sugar** if desired.
Slice and serve at room temperature or chilled.