1Pour boiling water over apricots. Set aside. Wait for at least 1 hour before starting to prepare rest of recipe. Then:
Preheat oven to 400 degrees.
Stir together bisquick, milk, and egg to form a soft dough. Knead lightly on a floured board. Roll out to a 9 by 12 inch rectangle.
2Mix together butter, sugar, and cinnamon. Spread evenly over dough leaving a 1/2 inch border all around without sugar.
Drain apricots very well. Spread apricots and walnuts over sugared dough. Roll up dough jelly roll style, making a 12 inch long roll.
3Cut dough into 8 slices and place these on a greased baking sheet, overlapping them slightly to make a continous long coffee cake. Bake for 20-25 minutes. Remove from oven and drizzle with powdered sugar icing while still warm (but not hot).