Is my pan too hot for brown sauce / gravy?

Question

I've tried to make the following sauce the last couple of days. The same pan is used for everything.

• Fry steak. Put steak on plate.
• Sauté onions.
• Melt butter and mix with flour.
• Add stock.
• Season.
• Let simmer for a couple of minutes

The taste and texture of the end result are fine. However, the high temperature of the pan (I like cancer with my meat) means that:

• The butter gets burnt. It's brown and half-molten long before I've time to add flour. Does this result in any undesired reactions?
• When the butter/flour mix is stable, the pan seems to be much hotter than 100 degrees. Adding the stock results in violent boiling. Could this damage my (teflon or cast iron) pan or affect the dish?

If the above poses problems, how should I solve them? (I imagine that) I like the taste imparted from the recently used pan.

Answer

You've got this all mixed up! Unless you're deglazing to do a pan sauce, the steak should be the LAST thing cooked. It's the centerpiece of the dish and the most expensive part, and shouldn't have a chance to get cold while you cook the other parts. Saving cleaning on a single saucepan is not worth eating cold steak.

You MUST use a stainless or cast-iron for this. As others touch on, teflon is not safe for searing, and fast temperature changes will wreck it.

Here's how to do things:

1. Julienne onions to saute, prepare and measure stock, trim fat from steak, cut or butterfly it if needed (this is your mise en place).
2. Start preheating saute pan for onions
3. Start butter melting in saucepan for roux
4. Prepare roux and saute onions at same time, then add stock to roux, whisk, and season
5. Transfer onions to bowl, cover to keep hot, and start to preheat pan for searing steak
6. Cook steak while finishing sauce as needed, then rest it appropriately
7. Plate steak, garnish, sauce, and serve

Alternately, here's another approach:

1. Mise en place (prep ingredients, optionally pre-measure them)
2. Prepare sauce in advance, set aside or keep hot. Or, even do it the day before and reheat it. It's a roux-based sauce; it won't go bad in the fridge, and will reheat beautifully.
3. Saute onions. Or, caramelize onions beforehand, and just reheat them briefly and add.
4. Cook steak
5. Plate, sauce, serve

And, finally the deglazed pan sauce way

1. Mise en place
2. Sautee onions. Set aside in bowl (or on a serving plate)
3. Cook steak
4. Throw heavy cream or red wine in to pan, and deglaze by scraping vigorously with a utensil and stirring as it boils vigorously
5. Quickly season this, and throw in the onions, a few pinches of parsley, pepper, salt, garlic, and paprika, plus optionally thyme
6. Congrats, you now have a pan sauce with onions to throw on your steak

In a professional kitchen, you'd have your onions pre-sauteed or sauteeing at the same time as the steak, and your sauce will be prepared in bulk, beforehand. You'd only have to cook the steak and briefly heat or season the other two parts.

Check more discussion of this question.