What are some ways I can gain weight? I am very skinny. I would like to gain atleast 10 pounds.?

When I had chemotherapy I lost alot of weight and was then ordered to put it back on. I had to gain about 25lbs. I ate healthy fatty foods. Pizza is a good choice. Whole milk and milk shakes (you can add instant milk powder too to add protein). Olive oil is good as a salad dressing. Some times too if you eat later at night ( like after 9 pm) a peanut er sandwich or er popcorn. If you do these things daily ,I am sure in about a month you will see weight gain. Keep an eye on your progress too to see how much more or less food you need to eat to get to your goal. Good luck!