It's very good but I would suggest the following: Make half the recipe to start. The sharpness of garlic scapes is not for everyone. Add 1/2 cup walnuts to the full recipe, 1/4 to half recipe. This will help mellow the sharpness. If you have ample scapes, use just the most tender parts of the garlic scape from the tip to just below the flower bud. Cut the scapes into 1/2 inch pieces; the scapes are very stringy and will otherwise get caught in the processor blades. Add cut scapes to the processor gradually rather than all at once. That said, the recipe worked for me!
I made half the recipe, reducing the sugar to 1 cup of brown sugar, and did not add the water. The half recipe made 24 mini muffins that I baked for 25 minutes. They puffed up high and were moist and tasty.
Loved it! I added two cloves of chopped garlic to the onion saute and used just half a jalapeno to start. It was spicy enough for me.