Preheat oven to 350 degrees. Line baking sheet with parchment paper or silpat. Unwrap chocolate hearts.

In a small bowl, whisk together flour, baking soda and salt in a small bowl and set aside.

In a large mixing bowl, cream together coconut oil, peanut butter, granulated sugar, and brown sugar on medium speed until fluffy. Add the vanilla extract and egg and beat until combine. Reduce the speed to low and gradually add in the flour and mix just until combine. Quickly mix in the oats and chopped peanuts.

Using a small cookie scoop (about one tablespoon), drop dough onto prepared baking sheets about two inches apart.

Bake 10 minutes or until edges of cookies begin to brown. Remove from oven and let cookies set on trays for 3 minutes. Remove to wire racks and immediately press a chocolate heart into the center of each cookie.; cool completely. Store cookies in airtight container up to 5 days.