Peanut Butter Date Milkshake

This drink was created to use some of the plethora of fresh dates I received from a friend from California. Very delicious, healthy and filling, it can be significantly altered to suit any all tastes and preferences! 
Serves 4

1-2 c. dates, pitted and roughly chopped
2 c. plain or vanilla yogurt
1/8 - 1/2 c. peanut butter
1 banana (optional)
1/2 c. milk
if using plain yogurt, add 2 T something sweet (sugar, vanilla sugar, or honey would all be good)
1-2 c. ice, depending on how icy you like it

1. Combine all ingredients except ice in a blender and blend.

2. Add ice and blend more to desired consistency.