Lori's Cauliflower au Gratin
Ingredients:
-
1 large head cauliflower, cut into small florets and stems reserved
-
2 tablespoons grated Parmesan cheese
-
1 teaspoon dried chopped chives
-
2 tablespoons butter
-
1 tablespoon chopped shallot
-
1 tablespoon minced garlic
-
1 cup vegetable broth
-
1 cup heavy whipping cream
-
2 tablespoons prepared horseradish
-
salt and ground black pepper to taste
-
2 tablespoons heavy whipping cream
-
½ cup shredded Gruyere cheese, or more to taste