Preheat oven to 325°F. Line a 9-inch square baking pan with parchment paper or greased foil.
In a small saucepan, melt butter, honey, and brown sugar over medium low heat until smooth. Remove from heat and stir in vanilla.
Set butter mixture aside for 5-10 minutes, stirring occasionally, until mostly cooled.
Meanwhile, combine oats, rice cereal, almond, flour and salt in a large bowl.
Add butter mixture to bowl and stir until combined with the dry ingredients. (Mixture will be very sticky.) Stir in the mini chocolate chips.
Press the mixture into the prepared baking pan, compacting it into an even layer.
Bake for 30-35 minutes until edges just start to turn brown.
Let granola bars cool completely in the pan. Then use parchment or foil to lift bars out of the pan and transfer to a cutting board. Cut into squares or bars.
Store granola bars in an airtight container at room temperature for a week or more. The bars also freeze well.
Notes
Note: It's important to let the butter mixture cool before combining all of the granola bar ingredients so that the chocolate chips don't melt.