Preheat oven to 350 degrees F and line a baking sheet with nonstick parchment paper.
In a standing mixer or a large mixing bowl, if using hand mixers, combine applesauce, butter, peanut butter, monkfruit and coconut sugar.
Mix on low speed 30 seconds until somewhat incorporated. Scrape down the sides, then mix again, turning up to medium-high, until mixture is fluffy and lightened in color, approximately another minute.
Add egg and vanilla and mix on medium-low until JUST incorporated, approximately 30 seconds. Set aside.
In a large mixing bowl, whisk together flour, salt and baking soda.
Add wet mixture to dry and fold until JUST incorporated. Scoop and roll approximately 2 ½ tablespoons mixture each into 9 or 10 balls and place on baking sheet, leaving at least 2” between each.
Use a dampened thumb to create an indent into each ball (approximately ¼” deep & ½” wide). Fill each indentation with approximately ¾ teaspoon jam.
Bake cookies for 10 minutes, then cool 5 minutes before transferring to a wire cooling rack. Cool another 10 minutes before enjoying.
Repeat with remaining batter. I usually do three rounds of 9 cookies each. I personally don’t recommend baking multiple batches at once, but you can play around with it! Cookies will keep tightly sealed at room temperature up to three days or frozen 6 months.