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Tuscan Sweet Potato Gratin with brown butter and sage

Weeknight-friendly Sweet Potato Gratin with the brown butter and sage we come back to again and again. Big flavour, short shopping list.

4.7 from 3,853 cooks
Prep12 min
Cook30 min
Serves2
LevelEasy
Free to cook
Tuscan Sweet Potato Gratin with brown butter and sage
Method

How to cook it

Prep everything first: chop the aromatics, measure the brown butter and sage elements, and pat the sweet potato dry so it colours well.

Warm the olive oil in a large pan over a medium heat and soften the onion and garlic until sweet and translucent, about 5 minutes.

Add the sweet potatoes and char until it takes on colour and the edges catch, 4 to 6 minutes.

Stir in the calabrian chilli and the rest of the brown butter and sage flavours, letting them cook out for a minute until fragrant.

Add the kale along with a splash of stock or water, then cook briskly until everything is tender and the sauce clings.

Tested in the Stewart & Musell kitchen. Timings assume a standard home oven and hob.

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