Twice Baked Potato - cooking recipe

Ingredients

6 large baking potatoes, scrubbed clean
rock salt
2 Tbsp. olive oil
1 Tbsp. butter
1/2 lb. cooked ham, cut into julienne strips, 1 x 1/4-inch
1/4 lb. button mushrooms, cut into julienne strips, 1 x 1/4-inch
granulated salt or sea salt
black pepper
1/4 c. sour cream
2 Tbsp. butter (room temperature)
8 oz. shredded Gruyere, Swiss or Cheddar

Preparation

Preheat oven to 450\u00b0. Place the potatoes on a cutting board. With the tip of small, sharp knife, score a lid shape on the top of each potato about 1/3 of the way down, cutting in about 1/8-inch all the way around.