01 -
1/2 cup butter, softened (for cookies).
02 -
1/2 cup brown sugar (for cookies).
03 -
1/4 cup granulated sugar.
04 -
1 egg, room temperature.
05 -
1 tsp vanilla extract.
06 -
1 1/2 cups all-purpose flour (for cookies).
07 -
2 tsp baking powder.
08 -
1/2 tsp salt (for cookies).
09 -
1 cup fresh blueberries.
10 -
1/3 cup blueberry jam.
11 -
1/3 cup all-purpose flour (for streusel).
12 -
1/3 cup brown sugar (for streusel).
13 -
1/4 cup cold butter, cubed.
14 -
1 tsp cinnamon.
15 -
1/4 tsp salt (for streusel).