I make my pot roast in a crock pot aka slow cooker. If you don't have a slow cooker, you can use a large stove top pot, or you can do this in the oven. At the end of the recipe, I'll explain the simple-- and I mean simple-- modifications you'll need to make if you don't use a slow cooker.
Here are the ingredients. This will serve about 6.
3 lb. roast (chuck, bottom round, or rump roast)
2 tsp. salt (I use Kosher)
1 tsp. freshly ground pepper
1/2 tsp. garlic powder
2 bay leaves
1 large onion
3-6 carrots
water to cover ingredients
This is a 3 lb. chuck roast. It's not my favorite cut for a pot roast, but it's what I had. I prefer a bottom round roast or a rump roast. All of these can take the long cooking required of a pot roast and will come out flavorful and tender.
You can put a little oil or Pam in a large pot or skillet, set to a high heat, and brown the meat on all sides before proceeding. If you don't feel like it, don't. I've never found it to make much of a difference. While browning the meat, cut an onion in half lenghthwise and then into 1/4" thick slices. Cut up 3-6 carrots as shown in this picture. Add onions and carrot to crock pot.

Now add the meat and enough water to just cover it. Add the salt, pepper, garlic powder, and bay leaves. Cover and cook on high for 5-6 hours* or until you can insert a fork into it and it seems like it wants to fall apart. (
TIP: This is a great meal to have cooking at home while you're at work. Simply reduce heat to low and cook 8-9 hours. You come home from work and the house smells amazing.)
Remove meat to cutting board, strain carrots and onions from liquid and use as a side dish. Reserve liquid to make your gravy. Here's how the meat looks when it comes out of the pot.
I absolutely can not stand fat on my meat. Because the meat is so tender, all you have to do is take a fork or knife and just scrape all the fat off. There might be a bit of fat between every one of the meat sections so I make sure I scrape each one. If you like fat, leave it on. Once I've removed all of the fat, which goes very quickly because everything is just so tender, I break the meat into chunks rather than slicing it. (If you've ever had the post roast at a Black Eyed Pea restaurant, this is how it will look and taste.)
Here's all of it.
That's it. That's how you make pot roast. Plate it with the veggies of your choice and gravy. (Does anyone need to know how to make gravy? I'll be glad to explain if you need it.)
Oven Directions: Follow all of these exact steps, using a large enough pan to be able to accomodate the roast and veggies and to be able to cover it with water. Cover tightly with foil, cook on 300 for 5 hours.
Stove top directions: Follow all of these exact steps, using a pot big enough to accommodate all of your ingredients. Cover, bring to a boil, then reduce to barely simmering for 5 hours.
*Sometimes I add water I've already heated on the stove to the pot to kickstart the cooking process. This makes my cooking time 5 hours. If I use cold or room temperature water, 6 hours might me necessary.
What if you use a bigger or smaller piece of meat? You're probably going to cook it about the same amount of time. All you have to do to test to see if the meat is done, no matter what size it is, is stick a fork into it. Twist the fork. A chunk of meat should easily pull right off the roast. That's how you know it's done. And if you're not a very good cook, you can go an hour longer on your cooking time and it's still going to be fine. So go ahead and try it. You can't mess it up. Enjoy!
I'd love to hear your feedback if you try this recipe.