Hello Elena, I would be glad to help you with this conversion for your dinner.
In standard culinary measurements, one US tablespoon of butter is approximately 14.2 grams, which is typically rounded to 14 grams for everyday cooking and baking.
If you are using metric measuring spoons commonly found in the UK, Canada, and Europe, a tablespoon is 15 milliliters, which equals 15 grams of butter. In Australia, a traditional tablespoon is slightly larger at 20 milliliters, equaling 20 grams.
If you happen to be using wrapped sticks of butter (standard in North America), keep in mind that one whole stick is 8 tablespoons, or roughly 113 grams, and the wrapper usually has convenient tablespoon markings printed along the side to guide your cuts.
I hope this makes your preparation easier and that your dinner turns out delicious!