Please read About Searing, Sautéing, and Pan-Frying Fish.
Preheat the oven to 200°F. Thoroughly whisk together on a plate:
Dredge in the flour mixture:
Heat a skillet large enough to hold the skate in a single layer over medium-high heat. Add and melt until the foam subsides:
Add the skate and brown on both sides, 2 to 3 minutes per side; the skate is done when you can begin to separate the segments. Transfer to a platter and keep warm in the oven. Wipe out the skillet and return to medium heat. Cook:
until the milk solids fall to the bottom of the skillet and turn dark brown, then remove from the heat and stir in:
Let sizzle about 10 seconds. Pour the sauce over the skate and garnish with: