In a large skillet, saute the onions in the olive oil until they’re softened. Reduce the heat to medium-low, and cook, ...

Victor Protasio. Peel the onions. Halve and slice lengthwise into uniform pieces (about 3/8-inch-wide slices are ideal, but a little larger or smaller is fine).

Add sugar; reduce heat to low, and cook, stirring occasionally, until onions are browned and caramelized, 10 to 15 minutes. Add vinegar, and cook 30 seconds to deglaze the pan.

9) Complete the burgers with the top half of the buns and serve immediately. Enjoy your delicious Smashed Hamburgers with Caramelized Onions, and serve with your favorite sides. ACCESSIBILITY ...

Fact: Caramelized onions are a game-changing ingredient. Jammy, earthy, savory and sweet at the same time, these umami-packed alliums instantly elevate burgers, pizza, pretty much any meat—and ...

Roast the onions on the top shelf of the oven for about 50 minutes, or until they are tender and caramelized; turn the onions halfway through roasting. Serve hot or at room temperature. Originally ...