In a large bowl, mix together the oats and cereal.
Add the brown sugar, maple syrup, peanut butter, coconut oil, vanilla extract, and salt to a saucepan.
Melt this mixture on low heat, stirring constantly, until it's silky smooth.
Pour the sauce over your oats and cereal. Stir well.
Stir in the frozen chocolate chips and shredded coconut.
Line a 9x9 brownie pan with parchment paper. Pour the granola mix into the lined pan, and press it into an even layer.
Refrigerate for at least 1 1½ hours.
Lift the parchment paper & granola block out of the pan, then carefully cut the block into 12 even rectangular pieces.See above for tips and tricks on how to cut without breaking too many bars! Pop the cut bars back into the fridge to set, while you melt the other chocolate chips and coconut oil together in a microwave.
Dip the bottom of each bar into the chocolate and place on a parchment-lined sheet tray.
Add the remaining melted chocolate to a pastry bag or ziplock bag, snip the corner, and drizzle onto the tops of the bars.
Set the finished granola bars into the fridge once more to fully set.
Store them in the refrigerator in a sealed container. Enjoy!