Place the chopped dates into a large mixing bowl. Add the butter, salt, baking soda, and brown sugar.
Pour the hot tea over the ingredients and stir to combine. Set aside to cool.
Preheat oven to 350 degrees and prepare a loaf pan by spraying it lightly with non-stick cooking spray. Set aside.
Once the dates have cooled, add the vanilla extract and stir to combine.
Add the flour, baking powder, nutmeg, and beaten eggs to the date mixture.
Using a spatula, fold the dry ingredients into the date mixture.
Next, fold in the chopped walnuts.
Transfer the batter to the loaf pan. (You can top the filled loaf pan with extra walnuts or chopped dates if you wish.)
Bake for 50 minutes. Test to see if the loaf is baked by inserting a toothpick into the loaf. If it comes out clean, the loaf is ready. If not, bake for another 5 minutes and test with a toothpick once again.
Allow the loaf to cool in the loaf pan for 10 minutes. Remove from pan and sit on a wire cooling rack to cool completely.