Name of book... child's short novel?

Question

Hi... I read this book as a kid and was wondering if you remember the name of it. All I remember is that there was a brother and a sister and they would go over to someone's house (grandma, aunt or neighbour- forget which it was) and the grandma would give them one brownie a day. She said they could only have one in a day, but they eventually snuck brownies to see what would happen if they had 2 in a day 3 or 4.
It went something like this:
If you had one brownie... you would like animals
if you had two....You could hear animals
If you had three... you could talk to animals
If you had four... you could turn into an animal for a short time

it was a short paperback novel for grade children... i read it in grade 4

Answer 1

Sound similar to a book called "If You Give a Mouse a Cookie"...