Sweedish shortbread cookies

Makes about 16
Ingredients:
  
2 cups whole wheat flour
1/2 cup sugar
1 1/2 tsp baking powder
10 1/2 tbsp salted butter, room temperature
1 large egg, room temperature
1 large egg yolk, room temperature
3 tbsp or more, raspberry jam

Preparation:

Preheat oven to 400 degrees.  Whisk flour, sugar, and baking powder in a large bowl.  Add butter; using your fingertips, rub in butter until coarse meal forms.  Whisk egg and yolk in a bowl; add to flour mixture and stir to blend.
Line two baking sheets with parchment paper.  Measure dough by two tablespoonfuls and roll into balls.  Place on prepared sheets, 2 inches apart.  Make and indentation in the center of each ball, fill with 1/2 tsp jam.  Bake cookies until golden brown, 12-14 minutes.  Cool on wire rack.