Hmmm, I do smell it, then take it out of the paper, then break it apart and look at the inside, it's texture, to see if it might have a filling or chocolate chips, etc.
Then I eat it (or half of it, then get distracted only to later find the remains of what was once a proud muffin).
If I want to bake muffins, I read up on dozents of recipes, maybe recall something tasty I saw somewhere and compare the possible ingredients with what I have at home. Then I go through the different possible ways of assembling the ingredients I have and what other ingredients I could get that would allow for a lot of different possible combinations.
If I actually get around to buying those new ingredients, my mind will be oversaturated with all things muffin-y-ish. So I get bored or distracted and forget I wanted to bake some muffins...
... until days or weeks later my body suddenly reminds me that it needs to be fed. Hypoglycaemia alert. No chocolate in the house. But hey, I could make muffins!
Disclaimer: Details of proces may vary from INTP to INTP