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1
Combine lemon juice and cream in a small bowl.
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2
Season with 1/4 teaspoon salt.
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3
Mash 1 teaspoon flour and 1 teaspoon butter in another small bowl until a paste forms.
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4
Set both bowls aside.
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5
Dry chicken thoroughly with paper towels.
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6
Season with the remaining 1/4 teaspoon salt and white pepper.
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7
Dredge lightly in the remaining 1/2 cup flour, shaking off any excess.
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8
(Discard leftover flour.
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9
).
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10
Heat the remaining 1 tablespoon butter and oil in a 12-inch cast-iron skillet over medium-high heat.
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11
Add the chickendo not crowd the pan.
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12
Cook, turning once, until nicely browned on both sides, about 10 minutes total.
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13
Add 1/2 cup broth, reduce the heat and cover.
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14
Simmer until the chicken is cooked through, 4 to 6 minutes.
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15
(Check to make sure the pan juices dont run dry.
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16
If necessary, add more broth, a tablespoonful at a time, to prevent scorching.)
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17
Transfer the chicken to a clean cutting board and tent with foil.
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18
Add the remaining 1/2 cup broth to the pan and bring to a boil over high heat.
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19
Cook until reduced to about 1/4 cup, 2 to 4 minutes.
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20
Reduce heat to medium, add the reserved lemon cream and bring to a simmer.
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21
Gradually whisk in the reserved butter-flour paste, a few bits at a time, until the sauce coats the spoon, 1 to 2 minutes.
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22
Stir in peas.
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23
Reduce the heat to low and return the chicken to the pan along with tarragon (or dill).
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24
Turn to coat with the sauce and cook until heated through, 1 to 2 minutes.
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25
Slice the chicken and serve with the sauce, garnished with sprigs of tarragon (or dill), if desired.