Halibut with Brown Butter, Lemon and Aged Fish Sauce

1/4 .....................cup wheat berries
1 ........................stick salted butter
3 ........................tablespoons grapeseed or canola oil
4 ........................6-ounce skinless halibut fillets
                             **Kosher salt**
                             **Freshly ground pepper**
3 .......................celery ribs, thinly sliced
1 .......................bunch of scallions, minced (1 cup)
1 .......................dried hot chile, such as árbol
2....................... tablespoons fresh lime juice
3 .......................tablespoons Blis Barrel-Aged Fish Sauce or Red Boat conventional fish sauce
                        **Steamed white rice, for serving**

1.         In a small saucepan of boiling water, cook the wheat berries until tender, 20 to 40 minutes. Drain and spread out on a plate to cool.
2.         In a small skillet, toast the wheat berries until golden and crunchy, 7 to 8 minutes.
3.         Meanwhile, in a small saucepan, melt the butter. Cook over moderate heat until golden brown and nutty-smelling, 5 to 7 minutes.
4.         In a large nonstick skillet, heat the oil until shimmering. Season the halibut with salt and pepper and cook over moderately high heat until browned on both sides and just cooked through, 3 to 4 minutes per side. Transfer to a plate. Add the celery, scallions and dried chile to the skillet and cook, stirring, for 1 minute. Add the brown butter, lime juice and fish sauce and cook until the sauce is slightly thickened, about 2 minutes. Add the fish and turn to coat in the sauce. Discard the dried chile. Transfer the fish and sauce to a platter and garnish with some of the toasted wheat berries.