In a heatproof bowl, stir together the coconut milk and tahini. Add in chocolate chips.
Melt these ingredients in a microwave or using the double boiler method. If using a microwave, heat in 30 second intervals stirring each time, until chocolate is melted into the milky tahini.
Once combined, allow mixture to cool to a thickened, spreadable consistency (kinda like grind-your-own almond butter at the grocery store). x
Plop and press the fudge layer onto the oat mixture until even.
Add the remaining oat mixture on top of the chocolate and press that evenly.
Place in fridge until firm, then cut into bars or squares. Enjoy!
Store in fridge for a week or in the freezer to last a few months!