Baked Potatoes without hoisin beans

1 Tbsp. Veg. oil 3 ounce Unsmoked bacon - derinded and diced, (75g) 6 ounce Button mushrooms - sliced, (175g) 1 tsp Schwartz Onion Pepper 1/4 pt Soured cream[...]

4 lrg baking potatoes 1 Tbsp. butter 4 Tbsp. half-and-half 1 x egg yolk , beaten 1/4 tsp black pepper 1/2 c. Swiss cheese , grated     Onion Sauce 1/4 c.[...]