I don't have a great knowledge of what a butter rum muffin is, but since no one tried to answer: There is an Italian dessert called "babà al rum" that is possibly similar. According to on online source, as 17 oz are equivalent to about 482g, your muffin should have about 1205 calories.
An English muffin contains between 130 & 140 calories. Add 100 calories per tablespoon of butter.
The exact amount of calories will depend on the brand and formulation of the peanut butter, but as a good approximation, you can assume about 90 calories with about 65 of those calories coming from fat.
250 calories
there are about 120 calories
An average size bran muffin might be approximately 250 calories.
A single serving (63g) of an English muffin has 153 calories.
The blueberry has 420 calories
There are 292.25 calories in 1.75 ounces of peanut butter. To find the answer you take 167, which is the number of calories in one ounce and multiply that by 0.75, which give you 125.25. Add 167 and 125.25 for your answer of 292.25.
An average muffin has about 70 calories
A blueberry muffin from a place like Starbucks is 380 calories with 170 from fat. A BlueBran VitaTop from Vitalicious is only 100 calories with 5 from fat.
There are actually negative calories in one ounce, as celery has no calories.
One ounce of sweet vermouth contains approximately 45 calories.