01 -
Heat oven to 350°F. Line large rimmed baking sheets with parchment paper.
02 -
In a microwave-safe bowl, melt butter in 20-second intervals until fully melted. Stir in peanut butter until smooth. Whisk in brown and granulated sugars. Set aside to cool until just warm.
03 -
Whisk together flour, baking soda, baking powder, and sea salt in a separate medium bowl. Set aside.
04 -
Add eggs, milk, and vanilla extract to the butter mixture and whisk vigorously until fully blended.
05 -
Fold flour mixture into the wet ingredients using a sturdy spatula until just combined. Avoid overmixing.
06 -
Use a large spring-loaded cookie scoop to portion 3 tablespoons of dough each. Roll into smooth balls. Create a thumb indentation in the center and place a heaping teaspoon of strawberry jam inside. Partially seal with dough, leaving some jam exposed. Lightly roll back into a ball and position on baking sheet jam-side up, spacing 3 inches apart.
07 -
Bake for approximately 14 minutes until cookies are puffed and edges turn lightly golden brown.
08 -
Allow cookies to rest on baking sheet for 5 minutes before transferring to a wire rack to cool completely.