01 -
Don’t dig in right away. Let them chill out until cool. These are next-level when they’re just a tiny bit warm and you dip them in a cold glass of milk.
02 -
Bake them at 375°F for 12 to 15 minutes. They’ll be golden on the outside but you want those middles to stay gooey.
03 -
Take the crumbly topping from the fridge. Sprinkle a good amount over each dough blob and gently pat it in so it sticks.
04 -
Scoop out balls of dough and plop them onto a sheet lined with parchment. Squeeze a little blueberry jam on top with a spoon or piping bag. Swirl it around the top using a toothpick or knife.
05 -
Carefully mix in the blueberries by hand, trying not to squish them.
06 -
Mix together the flour, baking powder, and salt in another bowl. Slowly stir this into your wet mix. Don’t worry about a perfect blend and don’t overmix.
07 -
Grab a big bowl. Beat the softened butter, brown sugar, and granulated sugar until the mix is fluffy and pale. Toss in the egg and a splash of vanilla and beat again.
08 -
In a bowl, toss together flour, brown sugar, cinnamon, salt, and the cold chopped butter. Use a fork or pastry blender and work the butter in until everything’s crumbly like little pebbles. Put this in the fridge so it stays cold while you prep the cookie dough.