Date and Walnut Cake

Recipe 200g of chopped medjool dates 200ml of boiling water 1 tsp of Baking soda 100g soft dark brown sugar 2 large eggs 60g melted butter 2tbsp of treacle 250g of plain flour 2 tsp of Baking powder 120g of Chopped Walnuts Frosting 75g of Butter 100g of Icing Sugar 200g of Philadelphia Cream Cheese 1tsp of Vanilla Extract 1 tbsp of lemon juice Bake in a 2 pound/900g tin on Conventional oven at 180C for 40 minutes Recipe in US Cups. This is converted from grams so these are approximate measures 2 1/2 cups of Chopped medjool dates 3/4 cup + 2tbsp of boiling water 1 tsp of Baking Soda 1 cup soft dark brown sugar 2 large eggs 1/2 stick of melted butter 2tbsp of treacle 2 cups of plain flour 2 tsp of Baking powder 1 cup of chopped walnuts Frosting 2/3 stick of Butter 1 cup of Icing Sugar 1 8oz block of Philadelphia Cream Cheese 1tsp of Vanilla Extract 1 tbsp of lemon juice