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1
Melt the butter in a heavy bottom saucepan over very high heat.
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2
When the butter is completely melted, stir in the flour with a wooden spoon.
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3
Cook for about 1 minute over low heat, stirring constantly.
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4
Slowly add the milk.
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5
Using a whisk, stir briskly until you have a smooth sauce, about 2 minutes.
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6
Add the wine, lemon juice, salt, black pepper, and cayenne and whisk again.
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7
Switch to the wooden spoon and keep stirring the white sauce until it is completely smooth and thickened, about the consistency of mayonnaise.
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8
Remove from the heat.
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9
Bring 2 cups of water and Old Bay Seasoning to a boil in a medium saucepan and add the shrimp.
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10
when the water returns to a boil.
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11
cook the shrimp for 1 minute.
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12
Drain immediately.
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13
Roughly chop the shrimp and put in a large mixing bowl.
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14
Add the crabmeat and with your hands, toss gently to mix.
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15
Pour the sauce over the seafood.
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16
With a large spoon, gently combine, taking care not to break apart the crabmeat.
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17
Spray an 8-inch square disposable aluminum foil pan with vegetable oil cooking spray or use an 11 by 7-inch casserole dish.
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18
Pour the mixture into the pan.
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19
Place the grated cheese on top, completely covering the seafood mixture.
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20
Bake in a preheated 350 degrees F oven uncovered for about 25 minutes, until bubbly.
