Triple Berry Muffins

Preheat oven to 375

6T unsalted butter
1/3 c milk
1 egg
1 egg yolk
3/4 t vanilla

1 1/2 c flour
3/4 c sugar
1 1/2 t baking powder
3/4 t salt
1 cup mixed berries
3 T jam (any flavor)
_____

Crumble Topping
3 T cold unsalted butter, cut into 1/2" cubes
1/2 c flour
3 1/2 T sugar

______

Melt butter in saucepan over low heat.  Remove from stove, whisk in milk, egg, yolk, and vanilla.

In large bowl, whisk flour, sugar, baking powder and salt.  Add milk mixture and stir.  Fold in berries and jam.

In second bowl, make topping by combining cold butter, flour and sugar with fingers, pinching until a coarse crumb forms.

Fill lined muffin pans 3/4 full with batter, sprinkle generously with topping.  Bake 18-22 minutes, cool in pan on rack.

(http://augustfirst.typepad.com/augustfirst/triple-berry-muffins.html)