Whisk sugar and softened butter until creamy. Add eggs, milk, and vanilla, whis
Add flour, baking powder and salt, mix.
Add the diced apples and chopped nuts and toss.
Combine all topping ingredients until crumbly.
Pour the dough into a parchment-lined pan (10 * 4 * 3 inches), sprinkle with topping. Bake 55-60 minutes in an oven preheated to 350F. Cool on a wire rack.
Mix all the icing ingredients, pour over the bread.