Sandwiched Oatmeal Cookies with Peanut Butter

Mix together the flour, baking soda, salt, and cinnamon. In another bowl, whisk together the butter, peanut butter, and both sugars. Beat in the eggs one by one, then whisk in the dry ingredients except for the oat flakes. Add those last.

Cover the finished dough with plastic wrap and refrigerate for at least an hour.

Preheat the oven to 180˚ C. If you have a silicone muffin mold, use it. If not, prepare baking paper. Take about one heaped teaspoon of dough and form balls in your palm. Place each ball into a silicone muffin cavity or onto baking paper with sufficient spacing (at least 5 cm apart). Lightly press the ball with your fingers (but don't flatten them completely) and bake for about 11 minutes in the preheated oven. Then let them cool for at least 10 minutes on the baking sheet (in the mold) on a wire rack. Only then remove them from the baking sheet (take them out of the molds) and let them cool completely.