Lidl's Apple Orange Brownies that don't require bringing out the electric mixer

Lidl's Apple Orange Brownies that don't require bringing out the electric mixer.

This is also great recipe to double.

Combine in a sauce pan over medium heat.
6 Tbsp butter
1 to 3/4 cup brown sugar in a saucepan (a little less than 3/4 works well too)

Cook until butter is melted.
Then beat in 1/2 cup apple sauce, some orange peel and
1 beaten egg
1 tsp. vanilla

Sift together:
1 1/4 flour
1 tsp baking powder
1 1/2 tsp salt
1/4 tsp soda
and then stir these dry ingredients into the mixture in saucepan.

Stir in 1/2 cup walnuts. 

Spread in greased 15 inch by 10 1/2 inch pan and bake at 350 for 15 minutes.

While the brownies are still warm top with orange glaze.
1 cup sifted powder sugar  (not sure of this amount.  I will have to call Lidl or experiment.)
1/2 tsp vanilla
2 Tbsp. orange juice or more
dash salt