Season Pork Chops With Salt, Pepper, And Garlic Powder, And Then Dredge In 1/2 Cup Flour. In A Skillet Over Medium Heat, Lightly Brown Chops In A Small Amount Of Oil. Place Chops In Slow Cooker, And Top With Onion Slices. Dissolve Bouillon Cubes In Boiling Water And Pour Over Chops. Cover, And Cook On Low 7 To 8 Hours. Preheat Oven To 200 Degrees F (95 Degrees C). After The Chops Have Cooked, Transfer Chops To The Oven To Keep Warm. Be Careful, The Chops Are So Tender They Will Fall Apart. In A Small Bowl, Blend 2 Tablespoons Flour With The Sour Cream; Mix Into Meat Juices. Turn Slow Cooker To High For 15 To 30 Minutes, Or Until Sauce Is Slightly Thickened. Serve Sauce Over Pork Chops.