Ready to dive in? Here’s how to transform those ingredients into a batch of irresistible cookies:

1. Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper. This simple step ensures your cookies bake evenly and don’t stick.
2. In a medium bowl, whisk together the flour, baking soda, and salt. This helps distribute the baking soda evenly, which is essential for the cookies’ rise.
3. In a large bowl, cream the butter and granulated sugar until light and fluffy, about 3 minutes. This is where the magic begins, as air is incorporated into the mixture.
4. Add the egg and vanilla extract to the butter mixture, beating until well combined. Remember those evenings with Grandma? Her secret was always to beat until you couldn’t see streaks of egg anymore.
5. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Over-mixing can lead to tough cookies, and we’re going for tender here!
6. In a separate bowl, mix the cream cheese and powdered sugar until smooth. Swirl in the blueberry jam gently along with fresh blueberries, creating pockets of fruity goodness.
7. Spoon tablespoons of cookie dough onto the prepared baking sheets. Make a small indentation in each with the back of a spoon and fill with a dollop of the cream cheese mixture.
8. Bake for 12-15 minutes, or until the edges are golden and the centers are set. The aroma wafting through your kitchen should be divine!
9. Allow cookies to cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely. Patience is a virtue here, as the flavors meld together beautifully as they cool.

There you have it! A little effort for a big reward, and each cookie is a love letter written in sugar and flour.