Step 1: Preheat the Oven
Preheat your oven to 200°C (180°C fan) or 400°F.
Step 2: Blanch the Broccoli
- Bring a large pot of salted water to a boil.
- Add the broccoli florets and blanch for 3-4 minutes until slightly tender but still firm.
- Drain and set aside.
Step 3: Make the Cheese Sauce
- Heat butter and olive oil in a saucepan over medium heat.
- Add the onion and garlic, sautéing for 2-3 minutes until soft.
- Stir in the flour and cook for 1 minute, stirring constantly.
- Gradually pour in the milk and cream, whisking continuously until smooth.
- Add the Dijon mustard, Cheddar cheese, and Parmesan, stirring until melted and thickened.
- Season with salt and black pepper to taste.
Step 4: Assemble the Bake
- Place the blanched broccoli in a greased baking dish.
- Pour the cheese sauce evenly over the broccoli.
Step 5: Prepare the Topping
- In a small bowl, mix breadcrumbs, grated Cheddar, and olive oil.
- Sprinkle the topping evenly over the broccoli and cheese sauce.
Step 6: Bake Until Golden
- Bake in the preheated oven for 20-25 minutes, or until golden and bubbling.
Step 7: Serve and Enjoy
- Let the dish sit for 5 minutes before serving.
- Serve hot as a side dish or a vegetarian main.