Uncured corned beef brisket is unlike regular corned beef, the saltiness is less pronounced and the beef carries a milder flavor. Due to the absence of sodium nitrite, the beef will be brown when cooked rather than pink.
Pressure Cooker instructions:
Heat butter in pressure cooker over medium heat until hot and bubbly. Add onion, garlic, celery, and peppercorns to the pot and cook 8-10 minutes, stirring occasionally, until vegetables are soft. Place corned beef on top of vegetables and pour in beer and enough water to just cover the beef. Place lid on cooker and bring to pressure according to manufacturers instructions. Once at pressure, reduce heat to low to maintain a gentle release of steam, and cook for 50 minutes. Release pressure and allow to cool naturally, about 10 minutes. Beef should be fork tender and ready to serve.