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Cast Iron Fried Onion Cheeseburgers

Why This Recipe Works

During the Depression, enterprising cooks in Oklahoma discovered they could use less meat without reducing portion size by mashing thinly sliced onions into beef patties. This trick not only bulked up the patties, it created a delicious layer of caramelized onions on the outside that infused the meat with extra richness. We wanted to adapt this technique for the home cook for juicy and tender burgers that focused on flavor, not thrift. To make these enhanced burgers, we first sliced an onion as thin as possible and then salted the slices to draw out all the extra moisture so they'd brown and caramelize fully. To further reduce the moisture content, we squeezed the salted onion in a dish towel. We then formed the patties by making a small mound of onion, placing a loosely formed ball of ground beef on top, and pressing the beef into the onion. We cooked the patties, onion side down, over gentle and steady heat provided by our cast-iron skillet until the onion layer developed a deep golden-brown color and began to crisp. To finish the burgers, we simply flipped them and turned up the heat to develop light browning on the second side. Layering the finished burgers on top of—rather than beneath—a slice of American cheese kept the onion crisp.

Ingredients

1 1/2 pounds fresh sweet cherries, pitted and halved
1 teaspoon lemon juice
2 teaspoons all-purpose flour, plus 1/2 cup (2 1/2 ounces)
1/8 teaspoon ground cinnamon
4 large eggs
2/3 cup (4 2/3 ounces) plus 2 teaspoons sugar
2 1/2 teaspoons vanilla extract
1/4 teaspoon salt
1 cup heavy cream
2/3 cup whole milk
1 tablespoon unsalted butter

Instructions

Serves 4

We prefer whole milk in this recipe, but 1 or 2 percent low-fat milk may be substituted. Do not substitute frozen cherries for the fresh cherries.

1. Adjust oven racks to lowest and upper-middle positions; place 12-inch skillet on lower rack and heat oven to 425 degrees. Line rimmed baking sheet with aluminum foil and place cherries, cut side up, on sheet. Roast cherries on upper rack until just tender and cut sides look dry, about 15 minutes. Transfer cherries to medium bowl, toss with lemon juice, and let cool for 5 minutes. Combine 2 teaspoons flour and cinnamon in small bowl; dust flour mixture evenly over cherries and toss to coat thoroughly.

2. Meanwhile, whisk eggs, 2/3 cup sugar, vanilla, and salt in large bowl until smooth and pale, about 1 minute. Whisk in remaining 1/2 cup flour until smooth. Whisk in cream and milk until incorporated.

3. Remove skillet (skillet handle will be hot) from oven and set on wire rack. Add butter and swirl to coat bottom and sides of skillet (butter will melt and brown quickly). Pour batter into skillet and arrange cherries evenly on top (some will sink). Transfer skillet to lower rack and bake until clafouti puffs and turns golden brown (edges will be dark brown) and center registers 195 degrees, 18 to 22 minutes, rotating skillet halfway through baking. Transfer skillet to wire rack and let cool for 25 minutes. Sprinkle clafouti evenly with remaining 2 teaspoons sugar. Slice into wedges and serve.

4. Adjust oven racks to lowest and upper-middle positions; place 12-inch skillet on lower rack and heat oven to 425 degrees. Line rimmed baking sheet with aluminum foil and place cherries, cut side up, on sheet. Roast cherries on upper rack until just tender and cut sides look dry, about 15 minutes. Transfer cherries to medium bowl, toss with lemon juice, and let cool for 5 minutes. Combine 2 teaspoons flour and cinnamon in small bowl; dust flour mixture evenly over cherries and toss to coat thoroughly.

5. Meanwhile, whisk eggs, 2/3 cup sugar, vanilla, and salt in large bowl until smooth and pale, about 1 minute. Whisk in remaining 1/2 cup flour until smooth. Whisk in cream and milk until incorporated.

6. Remove skillet (skillet handle will be hot) from oven and set on wire rack. Add butter and swirl to coat bottom and sides of skillet (butter will melt and brown quickly). Pour batter into skillet and arrange cherries evenly on top (some will sink). Transfer skillet to lower rack and bake until clafouti puffs and turns golden brown (edges will be dark brown) and center registers 195 degrees, 18 to 22 minutes, rotating skillet halfway through baking. Transfer skillet to wire rack and let cool for 25 minutes. Sprinkle clafouti evenly with remaining 2 teaspoons sugar. Slice into wedges and serve.

7. Adjust oven racks to lowest and upper-middle positions; place 12-inch skillet on lower rack and heat oven to 425 degrees. Line rimmed baking sheet with aluminum foil and place cherries, cut side up, on sheet. Roast cherries on upper rack until just tender and cut sides look dry, about 15 minutes. Transfer cherries to medium bowl, toss with lemon juice, and let cool for 5 minutes. Combine 2 teaspoons flour and cinnamon in small bowl; dust flour mixture evenly over cherries and toss to coat thoroughly.

8. Meanwhile, whisk eggs, 2/3 cup sugar, vanilla, and salt in large bowl until smooth and pale, about 1 minute. Whisk in remaining 1/2 cup flour until smooth. Whisk in cream and milk until incorporated.

9. Remove skillet (skillet handle will be hot) from oven and set on wire rack. Add butter and swirl to coat bottom and sides of skillet (butter will melt and brown quickly). Pour batter into skillet and arrange cherries evenly on top (some will sink). Transfer skillet to lower rack and bake until clafouti puffs and turns golden brown (edges will be dark brown) and center registers 195 degrees, 18 to 22 minutes, rotating skillet halfway through baking. Transfer skillet to wire rack and let cool for 25 minutes. Sprinkle clafouti evenly with remaining 2 teaspoons sugar. Slice into wedges and serve.

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