Photo: Ryan Liebe; Styling: Mary Clayton Carl 
Hands-on Time
25 Mins
Total Time
1 Hour 15 Mins
Serves 8

Using tenderloin, a leaner cut of steak, allows you to indulge in a flavored butter topper. You'll only use half of the cognac butter, but make all of it--cutting the amount in half doesn't work as well. Use the leftover butter within the week, on pasta or over fish, or freeze up to one month; bring to room temperature before serving.

How to Make It

Step 1

To prepare cognac butter, melt 1 1/2 teaspoons butter in a small nonstick skillet over medium-low heat. Add shallots; cook 2 minutes or until tender, stirring shallots occasionally. Carefully stir in cognac; cook 1 minute or until liquid is reduced by about one-third. Remove from heat; cool.

Step 2

Place 6 1/2 tablespoons butter in a small bowl; stir in cooled cognac mixture, 1 tablespoon thyme leaves, and 1/8 teaspoon black pepper. Cover and chill 10 minutes. Divide butter mixture in half. Scrape each half of butter mixture onto a piece of plastic wrap; shape each portion into a 4-inch-long log. Wrap each butter log in plastic wrap; refrigerate or freeze 1 log for another use.

Step 3

Preheat oven to 425°.

Step 4

To prepare tenderloin, combine mustard and next 4 ingredients (through 1/2 teaspoon pepper); stir with a whisk. Spread mustard mixture over all sides of tenderloin; sprinkle with 2 tablespoons thyme. Place tenderloin in a shallow roasting pan coated with cooking spray. Bake at 425° for 38 minutes or until a thermometer inserted in center of tenderloin registers 135° or until desired degree of doneness. Let stand 10 minutes.

Step 5

Cut tenderloin crosswise into 16 slices. Arrange 2 slices on each of 8 plates. Cut 1 butter log into 8 slices; top each serving with 1 butter slice.

Chef's Notes

MyRecipes is working with Let's Move!, the Partnership for a Healthier America, and USDA's MyPlate to give anyone looking for healthier options access to a trove of recipes that will help them create healthy, tasty plates. For more information about creating a healthy plate, visit

Ratings & Reviews

Just ok

December 25, 2015
We enjoyed the mustard prep on the steaks but the cognac butter was just ok.  We had this for Christmas Eve dinner along side a lobster tail.  Good but not spectacular.  Glad I tried it but not sure I'd make again.

Diane135's Review

January 03, 2015
Made this for New Years Eve dinner for friends. It was easy and the compliments flowed! Absolutely delicious!