Ingredients
- 2½ tablespoons salted butter, softened
- 2 tablespoons brown sugar
- 1 tablespoon white sugar
- ⅓ cup white flour
- Pinch of salt
- 1 stick salted butter, room temperature
- ¼ cup brown sugar
- ¼ cup white sugar
- 1 egg, room temperature
- 1½ cups flour
- ¼ teaspoon baking powder
- ½ teaspoon baking soda
- 1 tablespoon cornstarch
- ¼ teaspoon salt
- ⅔ cup wild blueberries, fresh or frozen
- 4 teaspoons blueberry jam
Preparation
Preheat the oven to 350° F. Prepare a baking sheet with parchment.
Make the topping. In a small bowl, mash butter, sugars, flour, and salt with a fork until well combined and crumbly. Set aside.
Make the dough. In the bowl of a standing mixer, whip butter until creamy. Add sugars and mix until fluffy. Add egg and vanilla, mix until combined. In a separate bowl, whisk together the dry ingredients. With the mixer running on low, gently shake in the dry ingredients and mix until combined. Remove the bowl from the mixer and, using a wooden spoon, gently fold in the blueberries.
Then, using a teaspoon, plop dollops of jam in several spots on the dough and gently drag the handle of a wooden spoon through the dollops, making ribbons of jam through the dough. The idea is that the jam isn’t mixed in completely, but that there are pockets of it throughout.
Spoon the dough onto the baking sheet using a 1½ tablespoon cookie scoop or a heaping tablespoon (the top of the dough is round). Pat each cookie top with the back of a spoon and then sprinkle with streusel topping.
Bake for 12 minutes and allow cookies to sit on the baking sheet for 10 minutes before removing them to a cooling rack.