If you want to gain fat, this should be done in a healthy manner, rather than unhealthy, though that may be a challenge.

Obviously, if you pig out with the highest-calorie foods at fast-food restaurants a few times a day, you will gain fat.

Some fast-food selections are inundated with calories. Assume that any gargantuan-portioned dish at a fast-food place is loaded with calories and fat. That’s a given.

However, there are healthier foods that are cram-packed with calories, such as cashews and peanuts. Snacking on peanuts and cashews will help you gain fat.

Add pine nuts to salads and meat dishes. One tablespoon of pine nuts contains 190 calories, and they are very tasty. Any kind of nut should be part of your weight gain plan.

I’ve found that a chocolate mint bar can be devoured in seconds with a chilly glass of milk.

If you like chocolate mint, then snack on a couple of supersize chocolate mint bars – that’s almost 1,000 calories, and two king size bars will hardly fill you up.

At least they hardly fill me up. Add a tall glass of milk and that’s another 200-400 calories, depending on type of milk. Whole Foods Market offers several varieties of chocolate mint bars.

A breakfast of waffles, pancakes or French toast will add significant calories to your daily diet.

One tablespoon of regular syrup is an outlandish 200 calories, give or take.

When you pour syrup on your pancakes, waffles or French toast, you’ll be pouring (and thus eating) far more than just a few tablespoons.

Three pancakes can easily soak up five tablespoons of syrup. The pancakes, waffles and French toast add a lot of calories, but don’t forget the butter – add a tablespoon of butter, and you have a ridiculously calorie-packed meal, and that excludes the tall glass of milk! You are on your way to successful fat gain.

Finally, load up on bread. I can eat an entire loaf – but it must be your favorite kind of bread. There are many breads out there, and some are drab, while others are sensational.

For me, it takes a lot of bread before I begin feeling full. To really add “insult to injury,” add sloppy Joe meat to the bread. This works only if you love sloppy Joes.

If you do, then go for four or five sloppy Joes at one sitting on your favorite hamburger buns.

Additional ways to easily gain fat: Load up on mashed potatoes, stuffing and plain cheese pizza. It should take a lot of mashed potatoes before filling you up. And one tablespoon of gravy is 100 calories.

A whole box of Stovetop stuffing is about 1,000 calories, yet is easy to gobble down. Pizza is a classic favorite high calorie food that’s easy to snarf down.

So have fun on your plan to easily gain fat, but don’t give up exercise; exercise is always important and should be a staple, whether you want to lose fat or gain fat.

Lorra Garrick is a former personal trainer certified by the American Council on Exercise. At Bally Total Fitness she trained clients of all ages for fat loss, muscle building, fitness and improved health.