In a heavy-bottomed 10-inch stainless steel saucepan, heat Worcestershire sauce, pepper, Creole seasoning, 1 tablespoon beer or water, and garlic over medium heat. Squeeze juice from lemon half into pan; add squeezed lemon half. Reduce heat to medium-low, and add cold butter, a few cubes at a time, swirling pan until butter is melted after each addition. Simmer until light brown and creamy. Add up to remaining 2 tablespoons beer or water if a thinner sauce is desired.
Notes
*We used Abita Amber Lager.
Recipe by Louisiana Cookin' at https://louisianacookin.com/inside-brennans-journey-as-a-new-orleans-grande-dame/