01 - 
                Set your oven temperature to 350°F (175°C). Grease a 9x13-inch pan, then line it with some parchment paper to make lifting it out easy.
              
              
              
                02 - 
                Combine the rolled oats, brown sugar, flour, salt, and baking soda in a big bowl.
              
              
              
                03 - 
                Pour in the melted butter and stir until you get a crumbly texture.
              
              
              
                04 - 
                Firmly press half of the crumb mixture into the pan you prepared earlier. Bake it for about 10 minutes, or until it's just starting to turn golden.
              
              
              
                05 - 
                With the crust baked, scatter the chocolate chips and pecans (optional) across the surface. Pour the caramel sauce evenly over the top, spreading it out smoothly.
              
              
              
                06 - 
                Take the rest of the oat mixture and sprinkle it over the caramel layer. Press it down lightly to help it stick together.
              
              
              
                07 - 
                Put the pan back in the oven and bake for 15-20 minutes. It’s ready when the top turns golden, and the caramel starts bubbling along the edges.
              
              
              
                08 - 
                Let it cool all the way down before slicing it into squares and enjoying.