Soak the dates in hot milk for 20 minutes, then blend into a smooth paste.
Mix oat flour, baking powder, baking soda, and salt.
Combine the date paste with the oil, then fold in the dry ingredients.
Pour into a lined 7‑inch pan, top with walnuts, and bake at 350°F (180°C) for 45–50 minutes.
Let cool before slicing.
