Creamy Cauliflower and Onion Gratin
oven, pot (small), knife, cutting board, baking dish, aluminum foil, bowl
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Step 1/ 10
Preheat the oven to 425°F.
Step 2/ 10
- 62½ ml cream
- 15 g butter
- ½ cloves garlic (grated)
- flaky sea salt
- pot (small)
Bring the cream, butter, and garlic to a simmer in a small pot over medium heat. Season with salt and pepper and remove from heat.
Step 3/ 10
- ⅜ kg cauliflower
- cutting board
Slice the cauliflower into -inch-thick slabs (some of the bits will fall away and crumble into tiny florets; this is fine).
Step 4/ 10
- ⅛ onion
- 43¾ g shredded Gruyère cheese
- baking dish
Place the smallest bits of cauliflower on the bottom of a 9-inch pie plate or cake pan (I like the roundness of the pie plates and cake pans, but a 2-quart baking dish of any shape will work). Scatter with some of the onion (very thinly sliced), followed by some of the cheese (Gruyère or white cheddar). Repeat with the remaining cauliflower, onion, and cheese until all of it is used, ending with the cheese.
Step 5/ 10
- chili flakes (optional)
Pour the cream mixture over (leave the garlic in or remove), followed by a good sprinkle of crushed red pepper flakes, if using.
Step 6/ 10
- aluminum foil
Cover with aluminum foil and bake until the cauliflower is tender and cooked through, 20 to 25 minutes.
Step 7/ 10
Remove the foil and continue to bake until the top is bubbly and golden and the cream is mostly reduced, another 15 to20 minutes (it will look slightly runny and creamy in the oven but will set and thicken once you take it out of the oven and let it cool a few minutes).
Step 8/ 10
- 43¾ g panko breadcrumbs (optional)
- ¾ tbsp sesame seeds
- 1 tbsp olive oil
If using the bread crumbs (fresh coarse bread crumbs or panko): Now is the time to put them to use. Combine the bread crumbs, sesame seeds (white), and olive oil in a medium bowl (alternatively, just use sesame seeds). Season with salt and pepper.
Step 9/ 10
Scatter the bread crumb mixture (alternatively, just scatter the sesame seeds) over the top and bake until those are deeply and thoroughly crispy and golden brown, 8 to 10 minutes.
Step 10/ 10
Remove from the oven and let cool slightly before serving.
Enjoy your meal!