super easy thumbprint cookies

This is my new favorite cookie recipe.  It's so flipping easy and customizable.  Also makes a good basic shortbread that you can use for a lot of things (pie crust, etc).  Here goes:

For 1 1/2-2 dozen cookies, you'll need:

• 1 c vegan margarine (earth balance), softened (not melted)
• 1/2 c raw sugar
• 1/2 t vanilla
• 2 c flour
• some sort of filling*

The steps:

• Preheat your oven to 350
• Cream margarine, sugar, and vanilla until light
• Add flour 1/4 cup at a time.  Start by mixing with a spoon and then use your hands.  You may not need all 2 cups.  1 3/4 is sometimes enough.  Final texture should be like play-doh
• Roll dough into 1-1/2" balls and place onto a lightly greased cookie sheet
• Press into dough balls with your thumb to make room for your filling
• Spoon out filling (about 1/2T for each cookie)
• Bake 12-15 minutes.  Cookies will not turn golden brown unless they are burnt, so take them out when the outsides feel stiff
• Promptly, but carefully, remove from cookie sheet and let cool at least 5 minutes before eating

*For filling, you have many options.  Here are some good ones:

• jam (one with a strong flavor like strawberry rhubarb is very good here)
• apple butter
• a simple chocolate sauce (margarine, vanilla, cocoa, sugar, and a little flour)
• mashed bananas (a good use of ones that are too ripe)
• nuts & agave (or honey)
• dark chocolate pieces

These cookies will make me fat because they're too easy to make.