Creating these delectable Apricot Filled Thumbprint Cookies is straightforward. Here’s a step-by-step guide to ensure your baking success:

1. Preheat Oven: Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
2. Mix Butter and Sugars: In a mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
3. Add Eggs and Vanilla: Blend in the egg yolk and vanilla extract, mixing until combined.
4. Combine Dry Ingredients: In a separate bowl, whisk together the all-purpose flour and salt.
5. Incorporate Flour Mixture: Gradually add the flour mix to the wet ingredients, stirring until a soft dough forms.
6. Chill the Dough: Wrap the dough in plastic wrap and refrigerate for about 30 minutes to make it easier to handle.
7. Form Cookies: Roll the dough into 1-inch balls and place them on the prepared baking sheet, spacing them about 2 inches apart.
8. Create Thumbprints: Using your thumb or the back of a round measuring tool, make an indentation in the center of each ball.
9. Fill with Apricot Preserves: Spoon a small amount of apricot preserves into each indentation, being careful not to overfill.
10. Bake the Cookies: Bake in the preheated oven for 12-15 minutes or until the edges are lightly golden.
11. Cool: Remove from the oven and cool on the baking sheet for about 5 minutes before transferring them to wire racks to cool completely.
12. Garnish (Optional): If desired, drizzle with melted chocolate or sprinkle with chopped nuts for added flavor and presentation.

By following these simple steps, you’ll create a batch of Apricot Filled Thumbprint Cookies that are not only beautiful but also sure to impress everyone who tries them!