Make the Chia Jam: In a small saucepan, combine the frozen raspberries and 1 tbsp maple syrup. Heat over medium heat, stirring occasionally, until the raspberries break down into a sauce (about 5-7 minutes). Use a fork to mash any large pieces. Remove from heat and stir in the chia seeds. Set aside to cool and thicken while you make the cookies.
Preheat & Prep: Preheat your oven to 350°F (175°C). Line a large baking sheet with parchment paper.
Make Cookie Dough: In a medium bowl, whisk together the almond flour and salt. Add the melted coconut oil, 1/4 cup maple syrup, vanilla extract, and almond extract. Stir with a spatula until a cohesive dough forms.
Shape the Cookies: Scoop the dough by the tablespoon and roll into smooth balls (about 1-inch in diameter). Place them about 2 inches apart on the prepared baking sheet.
Make the "Thumbprint": Use your thumb or the back of a 1/2 teaspoon measuring spoon to gently press an indentation into the center of each cookie ball.
Bake: Bake for 12-15 minutes, or until the edges are just turning a light golden brown.
Fill & Cool: Remove the cookies from the oven. While they are still warm on the baking sheet, carefully spoon about 1/2 teaspoon of the prepared chia jam into each indentation.
Cool Completely: Let the cookies cool completely on the baking sheet for at least 20-30 minutes before attempting to move them, as they will be delicate while warm. Store in an airtight container in the refrigerator.