chocolate zucchini pan muffins

Tender Gluten-Free Chocolate Zucchini Pan Muffins or muffin squares if you prefer. Have you heard of a pan muffin?   Well, I certainly hadn’t… My daughter sampled my new brownies; at least, I thought they were brownies. But she seemed to think they were more like a muffin…therefore, we called them “pan muffins.” And that’s…