Keto Steak with Blue Cheese Sauce
Ingredients:
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18 ounces filet mignon, cut into thin steaks
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salt and ground black pepper to taste
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1 tablespoon olive oil
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1 tablespoon butter
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½ cup shredded onion
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1 cup heavy cream
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5 ¼ ounces blue cheese, cubed
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1 clove garlic
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1 pinch ground nutmeg, or to taste