Preheat oven to 350 degrees F. Prepare a 9x13-inch pan by lining it with parchment paper. Set aside.
Unwrap the caramels and place them in the top pot of a double boiler then add in the half and half.
Fill the bottom pot of the double boiler with 1-2 inches of water.
Put the top pot over the bottom and place on the stove over medium-high heat.
Heat until the caramels are melted, stirring occasionally. Set aside while you assemble the oat bar mixture.
In a large mixing bowl, combine the flour, melted butter, oatmeal, brown sugar, baking soda, and salt.
Press ½ of the oat mixture in the bottom of the prepared baking pan covering as much as the bottom as you can, it is ok if there are a few holes.
Bake for 10 minutes or until it is just turning golden brown.
Remove from the oven and sprinkle with the chocolate chips.
Pour the melted caramel over the chocolate chips and then sprinkle on remaining oat crumb mixture, distributing it as evenly as possible.
Return to the oven and bake for an additional 15-20 minutes or until the top is starting to turn golden brown and caramel is bubbling on the sides.
Remove from oven and cool on a wire rack for 15 minutes.
To remove from the pan, pull up on the parchment paper and set on a flat surface like a cutting board.
Cool again for 10 minutes then cut into squares while they are still slightly warm.
Serve and enjoy!