non-dairy potato leek soup

so after going to the last Portsmouth farmer's market of the year, I was struck by a craving for potato leek soup. I can't ever have it without making it myself, because most places put milk or heavy cream in it, and dairy and I just aren't friends. So I bought some potatoes and leeks, and made my own. It's a riff off of a friend from high school's mother's AMAZING potato leek soup...it's nothing close to hers, but tasty nonetheless, with good texture and flavor. here it is!

2 smallish leeks, washed and cut into half moons (thin-ish)
2T unsalted butter
1lb white potatoes, cut into half moons (skin on) (again, thin-ish)
1 1/2c water
2c chicken stock (you can use vegetable to go vegetarian with this)
salt and pepper to taste

soften the leeks in the butter, let them caramelize a teeny bit. add water and stock, let come back up to heat, add potatoes (it was just over 4 cups sliced, all told). Allow to simmer until potatoes are soft. Take the potato masher to the whole mess, and slightly break up the potatoes. Then beat the tar out of about a cup and a half of the potatoes. Add the mashed potato mixture back to the pot, stir. Add salt and pepper. Voila! non-dairy potato leek soup! I like mine kind of chunky, so i didn't smash the potatoes too much. if you like it smoother, puree or just smash more!