- 4 tablespoons butter
- 1 onion, chopped
- 2 celery stalks, sliced
- 2 cloves garlic, chopped
- 1/2 teaspoon kosher salt, plus more to taste
- 1 quart chicken or vegetable broth
Large pinch of dried thyme
- 1 large bunch (around 2 pounds) broccoli
- 2 cups half and half
- 1 teaspoon Dijon mustard
8 ounces sharp white cheddar, grated
Black pepper, to taste
Lemon juice, to taste