Creating this delicious Sweet Cranberry Eggnog Bread Pudding is a straightforward process. Follow these steps for a delightful dessert:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter.
2. Prepare Bread: In a large bowl, add the cubed stale bread.
3. Mix Wet Ingredients: In another bowl, whisk together the eggnog, whole milk, eggs, sugar, vanilla extract, ground cinnamon, ground nutmeg, and salt until well combined.
4. Combine Mixtures: Pour the eggnog mixture over the cubed bread. Gently fold in the cranberries, ensuring they are evenly distributed.
5. Let Soak: Allow the mixture to sit for about 10-15 minutes to let the bread absorb the liquid.
6. Transfer to Baking Dish: Pour the bread mixture into the prepared baking dish, spreading it out evenly.
7. Bake: Place in the preheated oven and bake for 45 minutes to 1 hour, or until the top is golden brown and the pudding is set.
8. Cool: Remove from the oven and let it cool for 10-15 minutes before serving.
9. Serve: Cut into squares and serve warm with whipped cream or ice cream, if desired.

These steps will guide you in creating a spectacular Sweet Cranberry Eggnog Bread Pudding that will surely be a hit at your holiday gatherings.