Get Ready: Preheat your oven to 325°F (160°C). Line a large baking sheet with parchment paper or a silicone mat.
Mix the Wet: In a spacious bowl, beat the creamy peanut butter and softened butter together until the mixture is smooth and light. Then, blend in your sweetener, followed by the egg and vanilla extract, mixing until everything is well combined and creamy.
Add the Dry: Gently incorporate the almond flour, peanut flour, baking soda, and salt into the wet ingredients. Continue mixing until a soft, cohesive dough forms.
Shape the Kisses: Roll the dough into small, 1-inch balls, then arrange them about 2 inches apart on your prepared baking sheet. Lightly press down on each ball with the palm of your hand, flattening them to about 1/2 inch thick.
Bake to Perfection: Pop the cookies into the preheated oven and bake for 12 to 15 minutes. They should look soft and slightly puffy, with just a hint of browning. Once out of the oven, immediately use the back of a rounded teaspoon to create a small indentation in the center of each warm cookie. Allow them to cool completely.
Create the Chocolate Center: In a microwave-safe bowl, combine the keto chocolate chips and the 2 tablespoons of peanut butter. Microwave in short 30-second bursts, stirring in between, until the mixture is beautifully melted and smooth.
Fill and Chill: Using a small spoon, carefully dollop the warm chocolate mixture into the wells of your cooled cookies. Place the cookies in the refrigerator for about 30 minutes to allow the chocolate centers to firm up. Enjoy these delightful, healthy treats!