Ingredients
2 (3 lbs. each) heads of cauliflower
Kosher salt
8 Tablespoons butter
6 Tablespoons flour
4 Cups hot milk (I used 2%)
1 Teaspoon pepper
¼ Teaspoon nutmeg
1 ½ Cups Gruyere, grated
1 Cup Parmesan (freshly grated is best)
½ Cup panko bread crumbs
Step 1
Preheat the oven to 375 degrees. Using a stock pot, put hot water on the bottom and put it on the burner over medium-high heat. Then prepare the cauliflower by cutting it into large florets. When the water in the stock pot is boiling, put half of the cauliflower into the steam basket. Cover and steam the cauliflower for 6 minutes. Put the cauliflower in a bowl and steam the rest for another 6 minutes.
Step 2
Grate your Gruyere and parmesan, so they will be ready when your sauce is finished. Also, place the milk in the microwave and let it heat for a couple of minutes, until it is hot.
Step 3
Next, melt 4 tablespoons of butter in a large saucepan over medium low heat. When it has melted, add the flour and whisk constantly, cooking the roux for about 2 minutes. Pour the hot milk into the roux and whisk it to combine into a smooth mixture. Bring the sauce to a boil, for about 1 minute, until it thickens. Then remove it from the heat and add 2 teaspoons of salt, the pepper, nutmeg, 1 cup of the Gruyere and the parmesan. Mix it just to melt the cheese and combine the sauce. At this point, I taste it to make sure it is the way I want it.
Step 4
Pour 1/3 of the sauce on the bottom of a casserole dish. Place the cauliflower on top of the sauce and then pour the rest of the sauce evenly over top. Note: At this point, you can put the dish aside and finish right before you are ready to bake it. It makes a great do ahead veggie!!! When you are ready to bake it, combine the bread crumbs with the rest of the Gruyere and sprinkle them evenly over the top. Melt the remaining 4 tablespoons of butter and drizzle it over the the bread crumbs. Bake the gratin for 30 -40 minutes, or until the top is golden brown.
Gastronome's Note: The cauliflower will still be a little firm, which is how I like it. You can obviously steam it longer in the beginning if you prefer more mushy...errr...well done.