Spinach Balls with Parmesan

Name: Spinach Balls with Parmesan
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: American
Ingredients: 1 Tbsp. butter; 1/3 cup finely diced red onion; 3 cloves garlic (finely minced); 10 oz. frozen spinach (thawed & squeezed dry); 1 cup pork rind crumbs; ¼ tsp. black pepper; ¼ tsp. poultry seasoning; 1 tsp. kosher salt; 1/3 cup finely shredded parmesan cheese; ½ cup finely shredded fontina cheese; 1 Tbsp. heavy cream; 5 Tbsp. butter (salted); 3 eggs