SAUCE ROBERT, for Steaks, &c

Ingredients

• 2 oz butter
• 3 onions
• 1 teaspoonful flour
• 4 tablespoonful gravy, or stock No. 105
• salt and pepper to taste
• 1 teaspoonful made mustard
• 1 teaspoonful vinegar
• the juice of 1/2 lemon

Instructions

1. Put the butter into a stewpan, set it on the fire, and, when browning, throw in the onions, which must be cut into small slices.
2. Fry them brown, but do not burn them;
3. add the flour, shake the onions in it, and give the whole another fry.
4. Put in the gravy and seasoning, and boil it gently for 10 minutes;
5. skim off the fat, add the mustard, vinegar, and lemon-juice; give it one boil, and pour round the steaks, or whatever dish the sauce has been prepared for.