Preheat oven to 400 degrees F / 200 degrees C.
1 pound Brussels sprouts
Bring large pot of salted water to boil. Add 1 pound Brussels sprouts and cook for 6 to 8 minutes. Drain Brussels sprouts and set aside.
In oven-proof skillet, melt 1 tablespoon butter. Add 2 cloves garlic with 1 teaspoon Italian seasoning and ½ teaspoon red chili pepper flakes over medium heat until fragrant, 1 or 2 minutes. Whisk in 2 teaspoons almond flour mixture, stirring constantly until fully incorporated.
1 tablespoon butter, 2 cloves garlic, 1 teaspoon Italian seasoning, ½ teaspoon red chili pepper flakes, 2 teaspoons almond flour
Stir ½ cup heavy cream and ½ cup vegetable broth into skillet and mix until sauce thickens. Season with 1 pinch pepper and 1 pinch kosher salt, then spread out Brussels sprouts evenly in sauce. Give a quick stir to coat them well.
½ cup vegetable broth, 1 pinch pepper, 1 pinch kosher salt
Transfer skillet to oven and bake gratin until bubbly and golden brown, about 15 minutes.
Top with ½ cup Parmesan cheese.
½ cup Parmesan cheese