Spread apricot mixture into a buttered 8 inch square pan. Set aside.

In food processor or blender, whirl 1/2 cup walnuts until fine; transfer to bowl. Add oats, brown sugar, cinnamon and remaining 1/4 cup flour. Use a pastry blender to cut butter into rolled oat mixture; mixture should be crumbly.

Add remaining 1/2 cup chopped walnuts. Sprinkle oat/walnut topping over apricots. Bake about 20 minutes, until apricots are tender and topping is golden brown. Serve warm.