Preheat the oven to 350° Fahrenheit. Grease a 9x13inch pan with butter or cooking spray. In a small bowl, whisk together the dry ingredients of the cake (the flour, almond meal, ground cashews, baking powder, baking soda, salt, saffron, and other spices). Set aside. In a large bowl, cream together (with an electric mixer) the wet ingredients: the eggs, softened butter, brown sugar, pumpkin, milk and vanilla. Dump the dry ingredients into the wet and stir together with a spatula. Pour the batter into the prepared pan and use the spatula to spread the batter evenly (it will be very thick).