01 - Line a large baking sheet with parchment paper or a silicone baking mat and set aside.
02 - In a large bowl, combine Rice Krispies cereal, mini marshmallows, and toasted pecans. Mix thoroughly and set aside.
03 - Melt butter in a medium saucepan over medium heat. Add brown sugar, brewed coffee, espresso powder, and salt. Stir constantly until mixture is smooth and just begins to bubble, approximately 2-3 minutes. Remove from heat and stir in vanilla extract.
04 - Pour the hot coffee mixture over the Rice Krispies mixture. Using a spatula, quickly stir until all ingredients are evenly coated.
05 - Using a cookie scoop or tablespoon, drop mounds of the mixture onto the prepared baking sheet. Press gently to shape cookies as needed.
06 - Melt chocolate chips with coconut oil in a microwave-safe bowl in 20-second increments, stirring until smooth. Drizzle over the cookies evenly.
07 - Place baking sheet in refrigerator and chill cookies for at least 30 minutes until completely set.