Can you substitute canned pumpkin for oil in a brownie recipe?

It is generally not recommended to substitute canned pumpkin for oil in a brownie recipe, as they have different properties and can affect the texture and flavor of the brownies. Oil is a fat that is used to provide moisture, richness, and tenderness to baked goods, while canned pumpkin is a pureed vegetable that adds moisture but can also introduce a pumpkin flavor and a different texture. If you wish to reduce the amount of fat in a brownie recipe, you could try substituting a portion of the oil with applesauce, which is another common ingredient in baking and can provide moisture without significantly altering the flavor.