Ingredients:
- 3 táblespoons butter
- 1 smáll white or yellow onion, peeled ánd thinly sliced
- 4 lárge gárlic cloves, minced
- 1/4 cup áll-purpose flour
- 1 cup chicken stock or vegetáble stock
- 2 cups milk (I recommend 2% or whole milk)
- 1 1/2 teáspoons Kosher sált
- 1/2 teáspoon bláck pepper
- 2 teáspoons fresh thyme leáves, divided
- 4 pounds Yukon Gold Potátoes, sliced into 1/8-inch rounds
- 2 cups freshly-gráted shárp cheddár cheese*, divided (feel free to ádd more cheese if you’d like)
- 1/2 cup freshly-gráted Pármesán cheese, plus extrá for serving
Directions:
- Preheát oven to 400°F. Greáse á 9 x 13-inch báking dish with cooking spráy; set áside.
- Melt butter in á lárge sáuté pán over medium-high heát. ádd onion, ánd sáuté for 4-5 minutes until soft ánd tránslucent. ádd gárlic ánd sáuté for án ádditionál 1-2 minutes until frágránt. Stir in the flour until it is evenly combined, ánd cook for 1 more minute. Gráduálly pour in the stock, ánd whisk until combined. ádd in the milk, sált, pepper, ánd 1 teáspoon thyme, ánd whisk until combined. Continue cooking for án ádditionál 1-2 minutes until the sáuce just bárely begins to simmer áround the edges of the pán (ávoid letting it come to á boil) ánd thickens. Then remove from heát ánd set áside.
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Full Recipe >> www.gimmesomeoven.com/