1️⃣ Bring a pot of water to a boil. While waiting, combine the breadcrumbs, Parmesan, olive oil, and a few pinches of black pepper in a small bowl. This mixture will be used as a topping. 🔥

2️⃣ Once the water is boiling, cook the spaghetti for about 2 minutes less than the package instructions. It will finish cooking in the sauce. 🍝⏳

3️⃣ While the pasta boils, make the sauce. First, melt the butter in an oven-safe pan over medium heat. Once frothy, add the flour and stir with a spatula to combine. Cook the paste for a minute, adjusting the heat if needed to prevent the butter from browning too quickly. 🧈🍳

4️⃣ Switch to a whisk and slowly add the milk to the pan, whisking continuously. Monitor the heat to prevent the milk from boiling, which can cause the sauce to break. 🥛

5️⃣ Add the herbs de Provence and salt, cooking for a couple of minutes. 🌿🧂

6️⃣ Add the Gruyere cheese and stir until melted. 🧀

7️⃣ Add the spinach and stir until it wilts into the sauce. 🌱

8️⃣ Add the cooked spaghetti to the pan and stir to coat it in the sauce. 🍝

9️⃣ Sprinkle the Parmesan breadcrumbs over the top of the pasta. 🧀🍞

🔟 Turn on the broiler and place the pan under it for a couple of minutes, or until the breadcrumbs are crispy. 🔥

Enjoy your Gruyere Spaghetti! 🍝🧀🌿