Blender Bearnaise Sauce Recipe

Combine wine, vinegar, tarragon, onion, and black pepper in a skillet; bring to a boil and cook for 2 to 3 minutes until almost all the liquid is evaporated.

Place butter in a microwave-safe bowl and heat in the microwave for 30 seconds to 1 minute until fully melted.

Place tarragon mixture, egg yolks, lemon juice, salt, and cayenne pepper in a blender; pulse for 5 to 10 seconds until combined.

Remove the small hole cover from the lid; stream butter into the egg mixture while the blender is running until sauce is completely blended and smooth.

Serve with desired dish and enjoy.